Our view of the Solar System (and the universe) has changed over time.This assignment will help you understand how identical observations can lead to different inferences.
Your assignment includes brief answers to each of the following:
- What is the difference between the Geocentric and Heliocentric models of our solar system?
- How were the observed orbits of the planets (Mercury, Venus, Mars, Jupiter and Saturn) explained in the Geocentric model?
- How were the observed orbits of the planets explained in the Heliocentric model?
- Explain one of the following terms and how it is related to this assignment:
Celestial Sphere, Elliptical orbit, parallax, Almagest, Aristotle's Ether, equant, epicycles, Occam's razor, superior planets, inferior planets, transit, clockwork universe, cosmology
Your response MUST also include a link to the source of your information (wikipedia is not an acceptable source) if you found it on-line or the printed source (book, magazine,etc), cited in the format you learned in Mr. Brown's class.
This assignment is due by 9:00 am, Eastern Standard Time on Wednesday, November 4th.
Roany Molina Red Class
ReplyDelete1. The difference between Geocentric and Heliocentric is that Geocentric states that the earth is in the center of the solar system and Heliocentric says that the sun is in the middle of the solar system.
2. The orbit of the planets were described in the Geocentric model is because it believed that each planet orbited around like a circle around the earth.
3. The orbit of the planets are explained in the Heliocentric model because all the planets are suppose to circle the center of the solar system.
4."Epicycles are circular orbits within orbits that were used to describe the orbits of objects in Ptolemaic System." http://en.mimi.hu/astronomy/epicycle.html
Roany Molina Red Class 10/27/09
Hey this is James Canellos from the Red class, the date is 10/28/09. My e-mail address is Moviedude041195@gmail.com if any questions are needed. Here are my answers and sources.
ReplyDelete1. The difference is that Geocentric models theory, was that the Earth is the center of the solar system. Heliocentric models theory was that the sun is the center of the solar system. SOURCE: www.Universetoday.com/guide-to-space/the-solar-system.
page updated: August 2nd, 2009
2. Mercury, Mars, Venus, Jupiter and Saturn were all visible from Earth. For example Venus seemed to stay the same distance from Earth based on it's unchanged brightness.
SOURCE: www.Universetoday.com/guide-to-space/the-solar-system. page updated: August 2nd, 2009
SOURCE: http://Zebu.uoregon.edu/~js/ast221/lectures/lec06.html
TITLE: Planets and the celestial sphere
3. In Nicholaus Corpernicus' book, showed that a new system called modern ordering had the planets all lined up and facing the sun. It shows earth as just another planet. SOURCE:http://csep10.phys.utk.edu/astr161/lect/retrograde/copernican.htm
TITLE: The Heliocentric System
4. The Celestial sphere was a coordinate system made to find the position of the sun, moon and any other planets. Became very helpful for the Geocentric model.
SOURCE; http://zebu.uoregon.edu/~js/ast221/lectures/lec06.html
TITLE: Planets and the Celestial Sphere:
Harbir Deol Red 10/28/09 Mr. Barkan Montessori HomeWork
ReplyDelete1. The difference is that a heliocentric model portrays that the sun is in the center, not the exact center, all the other planets and the moon orbit around the sun. But a geocentric model shows that the earth was in the center and the sun, the moon and the stars all circles around earth.
2. In the Geocentric model all of the planets go in a perfect circle or symmetrical shape around the Earth.
3. In the Heliocentric model all of the planets show an elliptical formation around the sun.
4. Cosmology is the study of the Universe. It has a long history in involving science, and philosophy. It is related to this because the geocentric and heliocentric topics deal with the universe and the solar system.
Bibliography
1. "Lecture 4 -- Geocentric and Heliocentric Systems," 10/28/09, http://www.astro.psu.edu/users/rbc/a1/lec4n.html
2. "Reference Answers" Answers 10/30/09, http://www.answers.com/cosmology
1.Heliocentric is a theory that the sun is at the center of the solar system. Geocentric is another theory stating that the earth is the center of the solar system.
ReplyDeleteSource: Geocentric,10/30/09, http://dictionary.reference.com/browse/Geocentric
Source: Heliocentric, 10/30/09, http://www.merriam-webster.com/dictionary/heliocentric
2.The Observed orbital planets (Mercury, Venus, Mars, Jupiter and Saturn) explain the geocentric model by the way the planets moved in the sky. The planets movement looked as if it was orbiting the earth.
1. Heliocentric is a theory that the sun is at the center of the solar system. Geocentric is another theory stating that the earth is the center of the solar system.
ReplyDeleteSource: Geocentric, 10/30/09, http://dictionary.reference.com/browse/Geocentric
Source: Heliocentric, 10/30/09, http://www.merriam-webster.com/dictionary/heliocentric
2. The Observed orbital planets (Mercury, Venus, Mars, Jupiter and Saturn) explain the geocentric model by the way the planets moved in the sky. The planets movement looked as if it was orbiting the earth.
3. The Observed orbital planets explain the heliocentric model by how the sun moves around the sky (year round).
4. Elliptical Orbit- “(mechanics) The path of a body moving along an ellipse, such as that described by either of two bodies revolving under their mutual gravitational attraction but otherwise undisturbed.”
Elliptical Orbit is related to this assignment because “Elliptical Orbit” has to do with how planets/objects in the solar system orbit the sun.
Source: Elliptical orbit, 10/30/09, http://www.answers.com/topic/elliptical-orbit
Hey my name is Prabudh Josi i am in the green class. My email address is prabudhjosi@gmail.com.
ReplyDelete1. The difference between the Geocentric Model and Helicentric Model is the Geocentric Model says that the earth is the center of the universe. The Heliocentric Model says the sun is the center of the universe.
SOURCE: universetoday.com/guide-to-space/ the solar system.
2. All the other planets stayed visable but venus had a bright glow and stayed away from the sun. Source: universetoday.com/guide-to-space/the solar system.
3.Greek could only see the planets mercury, venus, mars and jupiter with their eyes. THen with the heliocentric model they could see all the planets. Source: universetoday.com/guide-to-space/the solar system.
4. Cosomology is the study of everything in outter space the plants, the sun, and stars.
Name-David Jean
ReplyDeleteBlue Class
November1,2009
1.The Difference between the Geocentric and Heliocentric is the geocentric model is when the sun and other planets in the solar system orbit around the earth.The heliocentric model is when all the planets in our solar system orbit around the sun.Source.www.universetoday.com
2.The observed oribits of the planets were all visible from the earth.
3.The observed oribits of the planets in heliocentric model is the planets are just gonna keep on going around the sun.
4.Celestial Sphere is related to this assignment by celestial sphere is an imaginary sphere of gigantic redius with the earth located at its center.And it was made to coordinate with planets.Source-csep10..phys.utk.edu/astr161/lect/celestial
Robert Harmon green Class
ReplyDelete1) The diference between the geocentric system and Heliocentric system is that the geocentric system says the earth is in the center of the solar system and the heliocentric says that the sun is in the middle of the solar system
http://astronomy.nmsu.edu/nicole/teaching/ASTR110/lectures/lecture11/slide02.html
title:The Copernican (Heliocentric, or Sun-centered) Model of the Solar System
2) The orbits of the planets in the geocentric system orbits in a circular motion around the planet earth.
http://astronomy.nmsu.edu/nicole/teaching/ASTR110/lectures/lecture11/slide02.html
title:The Copernican (Heliocentric, or Sun-centered) Model of the Solar System
3) In the Heliocentric they say the planets orbit in a counter clock-wise way. This theory is called the Flywheel motoin
.http://csep10.phys.utk.edu/astr161/lect/retrograde/copernican.html
title: The Copernican Model:
A Sun-Centered Solar System
4) Epicycle was a geometric model used to explain the differences in speed and direction of the motion of the sun and planets. Epicycles are related to heliocentric and geocentric systems because it explains about the orbits and motions of the planets.
http://en.wikipedia.org/wiki/Deferent_and_epicycle
title:Deferent and epicycle
HEllo MR. Barkan this is Loren COllado from the GREEN classs. DATE is November 1st, here are my answers and sources:
ReplyDelete1. The Geocentric Model states that the Earth was the center of our Solar System and that the other planets, stars and the sun revolved around it. The Heliocentric Model had the sun in the center of our solar system and all the planets and stars revolving around it.
SOURCE: Denning, Jenifer. Geocentric Theory vs. Heliocentric Theory. 5 May 1999. 1 NOV 2009. www.emporia.edu/earthsci/amber/students/denning/index.htm
2. Mercury, Venus, Mars, Jupiter and Saturn were believed to revolve around the Earth in a perfect circular path but their paths would sometimes change to "smaller circular loops" called epicycles.
SOURCE: Hildreth, Scott. "Geocentric vs. Heliocentric Theory Comparison Study Sheet Sample Answers & Comments". Chabot College Astronomy. 1 NOV 2009. www.chabotcollege.edu/faculty/shildreth/astronomy/geoanswers.html
3. Mars, Jupiter and Saturn showed backward orbits when Earth was in its faster orbit around the SUN and caught up to the outer planets. Mercury and Venus showed this motion when their orbits' view came from behind the sun in one direction but as it got farther from the sun they would turn around as it went between EARTH and the SUN.
SOURCE: Hildreth, Scott. "Geocentric vs. Heliocentric Theory Comparison Study Sheet Sample Answers & Comments". Chabot College Astronomy. 1 NOV 2009. http://www.chabotcollege.edu/faculty/shildreth/astronomy/geoanswers.html
4. Occams Razor states that between two theories the simpliest one is the preferred. This term is related to this assignment because there were two theories of our solar system, the Geocentic model (earth center) and the Heliocentric model (sun center)that gave different centers of our universe. The Geocentric model was prefered because it was simplier to think that everything in the sky (planets, constellations, the moon, etc.) was moving because it was moving around the Earth for it was the center, rather than the Earth was moving around the sun as well as the other planets and everything else in the solar system. Even though there was enough evidence to back the theory that the Earth was moving as well, we didnt believe that because we didnt feel the Earth moving.
SOURCE: "Ockhams Razor". Encyclopedia Britannica. 2009. Encyclopedia Britannica Online. 01 Nov. 2009 http://www.britannica.com/EBchecked/topic/424706/Ockhams-razor.
Loren Collado (GREEN). NOVEMBER 1st.
Cree Payton from the Blue Class
ReplyDelete1) The difference between Geocentric and Heliocentric is Geocentric model was created to explain how the planets, the Sun, and even the stars orbit around the Earth. The theory made the belief that Earth was in the center of the universe. The Heliocentric model is a theory that places the Sun as the center of the universe, and the planets orbiting around it. The heliocentric model later replaced geocentrism.
Cessna, Abby “Geocentric Model”
Page updated: June 17, Universe Today 1 Nov. 2009
http://www.universetoday.com/guide-to-space/the-solar-system/geocentric-model/
Cessna, Abby “Heliocentric Model”
Page updated: June 22, 2009 Universe Today. 1 Nov. 2009
http://www.universetoday.com/guide-to-space/the-solar-system/heliocentric-model/
2) Mercury, Mars, Venus, Jupiter and Saturn were explained in the Geocentric model because they were seen from Earth. Plato first proposed that the planets followed perfect circular orbits around the Earth.
http://zebu.uoregon.edu/~js/ast221/lectures/lec06.html
3) The Heliocentric model proved that Mercury, Venus, Mars, Jupiter and Saturn all revolved around the sun. The moon is the only celestial sphere in this system that revolves around the earth, and, together with it, around the sun. So this showed that the planets all lined up facing the sun.
Bertolt, Brecht “The Copernican Model of the Planetary System - The Heliocentric Model”
Collected Plays Vol. 5, Life of Galileo Editing By Ralph Manheim and John Willett, 1972. 1 Nov. 2009
http://muse.tau.ac.il/museum/galileo/heliocentric.html
4) Clockwork universe refers to the concept of the universe as a system that act like a mechanical clock. Similar to a clock, the universe could be thought of as something both designed and constructed by a divine artificer and made by a divine craftsman, and the universe, once set in motion by its creator, could be seen as something able to operate without corrections or interference from outside. The regular motions exhibited by the sun, moon, stars, and planets provided the basis for elaborate medieval clocks that could mimic the patterned motion of these objects.
Van Till, Howard J. “Clockwork Universe” HighBeam™ Research, Inc.
Encyclopedia of Science and Religion | 2003 |
© Copyright 2009. 1. Nov 2009
http://www.encyclopedia.com/doc/1G2-3404200094.html
1.The Difference is that a heliocentric modle says that the sun is in the center but not the exact center and all the other planets and the moon orbit the sun. But a geocentric modle states that the earth was in the center and that the sun moon and stars all went around earth. That is the difference.
ReplyDelete2. from the earth point of veiw. ( orbit around the earth)
3. all the planet orbit around the sun.
4. they are all related the the solar activies.
my souorce was wiki answers
Farah Jules Red Class
ReplyDelete1.
Geocentric model was formed thousands of years ago by Greek philosophers and was the model people used of the Solar System for centuries. Geocentric actually means earth centered. The geocentric model places the Earth at the center of the universe with the Sun, Moon, stars, and planets circling it. On the other hand, the heliocentric model meaning that its sun centered, progressively replaced the geocentric model. This new system places the Sun at the center of the Solar System with the Earth and all the other planets orbiting it. This theory transformed everything because it reversed centuries of established opinion.
Abby Cessna
August 2, 2009
Difference between Geocentric and Heliocentric
http://www.universetoday.com/guide-to-space/the-solar-system/difference-between-geocentric-and-heliocentric/
2. In the geocentric model, the Greeks thought that the Earth was still because no one felt it moving. So thinking that, they said that the planets were the ones moving around the Earth. They also thought that the stars were moving around the Earth as well. That also proved to them that The Earth was motionless.
Jennifer Denning
May 5, 1999
Geocentric
http://www.emporia.edu/earthsci/amber/students/denning/geo.htm
3. Nicolaus Copernicus believed that the planets and the moon moved around the Sun counter- clockwise.
Jennifer Denning
May 5, 1999
Heliocentric
http://www.emporia.edu/earthsci/amber/students/denning/hel.htm
4. An elliptic orbit is when an object is in orbit around another object. This relates to the assignment because the geocentric model believed that the planets orbited around the Earth and the heliocentric model believed that the planets orbited around the Sun.
Randy Russell
December 16, 2005
Elliptical Orbits
http://www.windows.ucar.edu/tour/link=/physical_science/physics/mechanics/orbit/ellipse.html&edu=high
Johnson Lu of blue class
ReplyDelete1)A Heliocentric model is where the sun is in the center of the universe. In the geocentric model the earth is the center of the universe.
http://www.universetoday.com/guide-to-space/the-solar-system/ Visited on nov. 2, 2009
2)On earth it looks as if the sun and other planets look like they are rotating around the earth. making the Ancient Greece think that the earth is in the center.
http://www.universetoday.com/guide-to-space/the-solar-system/geocentric-model/
visited on nov. 2, 2009
3)He saw that the earth rotates and rotates around the sun. the moon rotating around the earth.
http://www.universetoday.com/guide-to-space/the-solar-system/heliocentric-model/
visited on nov. 2, 2009
4)Elliptical orbit is the way our solar system orbits. The Geocentric and Heliocentric models is models of the solar system. They have the elliptical orbit in them.
http://www.aerospaceguide.net/glossary/index.html visited on nov. 2, 2009
JULIE URPRASAD BLUE CLASS>>>>1.The difference between heliocentric model is that its not in the exact center and all planets orbit the sun. The geocentric model is when the earth is in the middle and the moon and stars goes around earth. 2. All the planets Mercury, Venus, Mars, Jupiter and Saturn in the geocentric model have to orbit around Earth [the planet]. All the planets executed a circular orbit around Earth. The orbits were believed to be circular for philosophical reasons. The ancients’ believed a circle was the most perfect shape it must of followed a heavenly objective and must of execute circular orbits. 3.The orbits were explained in the heliocentric in three ways 1.If the Earth is rotating about its axis, and orbiting around the Sun, then the Earth must be in motion. However, we cannot ``feel'' this motion. Nor does this motion give rise to any obvious observational consequences. Hence, the Earth must be stationary.
ReplyDelete2.If the Earth is executing a circular orbit around the Sun then the positions of the stars should be slightly different when the Earth is on opposite sides of the Sun. This effect is known as parallax. Since no stellar parallax is observable (at least, with the naked eye), the Earth must be stationary. In order to appreciate the force of this argument, it is important to realize that ancient astronomers did not suppose the stars to be significantly further away from the Earth than the planets. The celestial sphere was assumed to lie just beyond the orbit of Saturn.
3.The geocentric model is far more philosophically attractive than the heliocentric model, since in the former model the Earth occupies a privileged position in the Universe. Source: Richard Fitzpatrick 2006-02-02 “Historical background” Nov.2nd.2009 http://farside.ph.utexas.edu/teaching/301/lectures/node151.html 4.Occam's razor relates to this assignment because in order to make the earth be the center of the solar system, the planet's would have strange, complicated orbits. If the sun was in the center of the solar system, all of the planets have simple elliptical orbits. Source:” Lecture 4 -- Geocentric and Heliocentric Systems" Nov.1st.2009 http://www.astro.psu.edu/users/rbc/a1/lec4n.html
Hello, this is Simranjeet Singh from the Red Class. My email address is mcsimdj@yahoo.com if you have any concerns or questions. My answers follow:
ReplyDelete1.The difference between the Geocentric and Heliocentric is that the heliocentric says that the sun is in the center but not exactly in the center and that all other planets and the moon orbit the sun. The geocentric states that the Earth was in the center and that that the Sun, Moon, and Stars all went around Earth. SOURCE: http://wiki.answers.com/Q/What_is_the_difference_between_geocentric_and_heliocentric_theories.
2.Mercury, Mars, Venus, Jupiter, and Saturn were observed orbits in the geocentric model because it states that all planets circle around the Earth. This defines these planets, above, to go around the Earth. SOURCE: Same as # 1.
3.The observed orbits of the planets explained in the Heliocentric model state that all planets go around the Sun instead of the Earth, you can observe that both of these models had different theories to them. SOURCE: Same as # 1.
4.The celestial sphere is defined as an imaginary sphere of infinite extent with the earth at its center on which the stars, planets, and other heavenly bodies appear to be located. This term is relaed to this project because it involves the stars, planets, and the Earth. This relates to both the Geocentric and Heliocentric models. SOURCE: http://www.answers.com/topic/celestial-sphere
Hello, this is Simranjeet Singh from the Red Class. My email address is mcsimdj@yahoo.com if you have any concerns or questions. My answers follow:
ReplyDelete1. The difference between the Geocentric and Heliocentric is that the heliocentric says that the sun is in the center but not exactly in the center and that all other planets and the moon orbit the sun. The geocentric states that the Earth was in the center and that that the Sun, Moon, and Stars all went around Earth. SOURCE: http://wiki.answers.com/Q/What_is_the_difference_between_geocentric_and_heliocentric_theories.
2. Mercury, Mars, Venus, Jupiter, and Saturn were observed orbits in the geocentric model because it states that all planets circle around the Earth. This defines these planets, above, to go around the Earth. SOURCE: Same as # 1.
3. The observed orbits of the planets explained in the Heliocentric model state that all planets go around the Sun instead of the Earth, you can observe that both of these models had different theories to them. SOURCE: Same as # 1.
4. The celestial sphere is defined as an imaginary sphere of infinite extent with the earth at its center on which the stars, planets, and other heavenly bodies appear to be located. This term is relaed to this project because it involves the stars, planets, and the Earth. This relates to both the Geocentric and Heliocentric models. SOURCE: http://www.answers.com/topic/celestial-sphere
Hello, this is Simranjeet Singh from the Red Class. My email address is mcsimdj@yahoo.com if you have any concerns or questions. My answers follow:
ReplyDelete1. The difference between the Geocentric and Heliocentric is that the heliocentric says that the sun is in the center but not exactly in the center and that all other planets and the moon orbit the sun. The geocentric states that the Earth was in the center and that that the Sun, Moon, and Stars all went around Earth. SOURCE: http://wiki.answers.com/Q/What_is_the_difference_between_geocentric_and_heliocentric_theories.
2. Mercury, Mars, Venus, Jupiter, and Saturn were observed orbits in the geocentric model because it states that all planets circle around the Earth. This defines these planets, above, to go around the Earth. SOURCE: Same as # 1.
3. The observed orbits of the planets explained in the Heliocentric model state that all planets go around the Sun instead of the Earth, you can observe that both of these models had different theories to them. SOURCE: Same as # 1.
4. The celestial sphere is defined as an imaginary sphere of infinite extent with the earth at its center on which the stars, planets, and other heavenly bodies appear to be located. This term is relaed to this project because it involves the stars, planets, and the Earth. This relates to both the Geocentric and Heliocentric models. SOURCE: http://www.answers.com/topic/celestial-sphere
Hello, this is Simranjeet Singh from the Red Class. My email address is mcsimdj@yahoo.com if you have any concerns or questions. My answers follow:
ReplyDelete1. The difference between the Geocentric and Heliocentric is that the heliocentric says that the sun is in the center but not exactly in the center and that all other planets and the moon orbit the sun. The geocentric states that the Earth was in the center and that that the Sun, Moon, and Stars all went around Earth. SOURCE: http://wiki.answers.com/Q/What_is_the_difference_between_geocentric_and_heliocentric_theories.
2. Mercury, Mars, Venus, Jupiter, and Saturn were observed orbits in the geocentric model because it states that all planets circle around the Earth. This defines these planets, above, to go around the Earth. SOURCE: Same as # 1.
3. The observed orbits of the planets explained in the Heliocentric model state that all planets go around the Sun instead of the Earth, you can observe that both of these models had different theories to them. SOURCE: Same as # 1.
4. The celestial sphere is defined as an imaginary sphere of infinite extent with the earth at its center on which the stars, planets, and other heavenly bodies appear to be located. This term is relaed to this project because it involves the stars, planets, and the Earth. This relates to both the Geocentric and Heliocentric models. SOURCE: http://www.answers.com/topic/celestial-sphere
Hello, this is Simranjeet Singh from the Red Class. My email address is mcsimdj@yahoo.com if you have any concerns or questions. My answers follow:
ReplyDelete1. The difference between the Geocentric and Heliocentric is that the heliocentric says that the sun is in the center but not exactly in the center and that all other planets and the moon orbit the sun. The geocentric states that the Earth was in the center and that that the Sun, Moon, and Stars all went around Earth. SOURCE: http://wiki.answers.com/Q/What_is_the_difference_between_geocentric_and_heliocentric_theories.
2. Mercury, Mars, Venus, Jupiter, and Saturn were observed orbits in the geocentric model because it states that all planets circle around the Earth. This defines these planets, above, to go around the Earth. SOURCE: Same as # 1.
3. The observed orbits of the planets explained in the Heliocentric model state that all planets go around the Sun instead of the Earth, you can observe that both of these models had different theories to them. SOURCE: Same as # 1.
4. The celestial sphere is defined as an imaginary sphere of infinite extent with the earth at its center on which the stars, planets, and other heavenly bodies appear to be located. This term is relaed to this project because it involves the stars, planets, and the Earth. This relates to both the Geocentric and Heliocentric models. SOURCE: http://www.answers.com/topic/celestial-sphere
Harry Bhasin Green Class
ReplyDelete1.Geocentric means "Earth-Centered." The geocentric model is the idea that the Earth is the center of the Universe and everything in the sky circles around it.
Heliocentric means "Sun-centered." The heliocentric model is the idea that the Sun is the center of the Universe-- or, later, the Sun is the center of the solar system and the stars are other suns- and the planets, including Earth, circle the sun.
Source:http://wiki.answers.com/Q/What_is_the_difference_between_geocentric_and_heliocentric_and_which_is_corrrect
2. The orbit of the planets were shown in the geocentric model and they were all visible.
3. They were explained by showing the correct order of the planets and the planets were orbiting the sun.
4.The celestial sphere is an imaginary sphere of gigantic radius with the earth located at its center. The celestial sphere helped find all the planets and the sun and moon. So it helped with the geocentric model.
Raysel, Rojas
ReplyDeleteheres my hw.
1. the difference between heliocentric and geocentric is that in a heliocentric model the sun is placed directly in the middle of the model. In a geocentric model, the sun is at the bottom,the earth is in the middle, and the moon phases are completely different.
2.Because they are being viewed in a geocentric model they are orbiting in a circle around the sun.
3.In the heliocentric system, the Sun is considered to be the center of the solar system. All of the planets rotate around the Sun. The Moon rotates around the Earth, and it moves together with the Earth around the Sun.
4.An oval orbit shape is called an ellipse.All of the planets in our Solar System move along elliptical orbits.In the heliocentric model, the 12 positions cover an entire range of possible locations of Venus around the Sun as viewed from Earth. In the geocentric system, the 12 positions cover an entire range of the possible locations of Venus on its elliptical path as it travels around the Earth.
Raysel Rojas...Red Class 11/2/09
Raysel Rojas...
ReplyDeleteMr.B I forgot to cite my sources so here they are...
1.The Copernican (Heliocentric, or Sun-centered) Model of the Solar System, November 3rd, http://astronomy.nmsu.edu/nicole/teaching/ASTR110/lectures/lecture11/slide02.html
2.Elliptical Orbits, November 3rd, http://www.ask.com/bar?q=what+is+an+elliptical+orbit&page=1&qsrc=19&dm=all&ab=0&title=Elliptical+Orbits&u=http%3A%2F%2Fwww.windows.ucar.edu%2Ftour%2Flink%3D%2Fphysical_science%2Fphysics%2Fmechanics%2Forbit%2Fellipse.html&sg=4G11XE5UykZfHeJElJM2g8LwpMd90BSNXcNMkTa5NrA%3D&tsp=1257262944910
Raysel Rojas.. Sorry for the inconvienience
Hello, MR. Barkan this is Loren Collado from the GREEN class. DATE is November 1st; here are my answers and sources:
ReplyDelete1. The Geocentric Model states that the Earth was the center of our Solar System and that the other planets, stars and the sun revolved around it. The Heliocentric Model had the sun in the center of our solar system and all the planets and stars revolving around it.
SOURCE: Denning, Jenifer. Geocentric Theory vs. Heliocentric Theory. 5 May 1999. 1 NOV 2009. http://www.emporia.edu/earthsci/amber/students/denning/index.htm
2. Mercury, Venus, Mars, Jupiter and Saturn were believed to revolve around the Earth in a perfect circular path but their paths would change to "smaller circular loops" called epicycles at times.
SOURCE: Hildreth, Scott. "Geocentric vs. Heliocentric Theory Comparison Study Sheet Sample Answers & Comments". Chabot College Astronomy. 1 NOV 2009. http://www.chabotcollege.edu/faculty/shildreth/astronomy/geoanswers.html
3. Mars, Jupiter and Saturn showed backward orbits when Earth was in its faster orbit around the SUN and caught up to the outer planets. Mercury and Venus showed this motion when their orbits' view came from behind the sun in one direction but as it got farther from the sun they would turn around as it went between EARTH and the SUN.
SOURCE: Hildreth, Scott. "Geocentric vs. Heliocentric Theory Comparison Study Sheet Sample Answers & Comments". Chabot College Astronomy. 1 NOV 2009. http://www.chabotcollege.edu/faculty/shildreth/astronomy/geoanswers.html
4. Occams Razor states that between two theories the simplest one is the preferred. This term is related to this assignment because there were two theories of our solar system, the Geocentric model (earth center) and the Heliocentric model (sun center)that gave different centers of our universe. The Geocentric model was preferred because it was simpler to think that everything in the sky (planets, constellations, the moon, etc.) was moving because it was moving around the Earth for it was the center, rather than the Earth was moving around the sun as well as the other planets and everything else in the solar system. Even though there was enough evidence to back the theory that the Earth was moving as well, we didnt believe that because we didn’t feel the Earth moving.
SOURCE: "Ockham’s Razor". Encyclopedia Britannica. 2009. Encyclopedia Britannica Online. 01 Nov. 2009. http://www.britannica.com/EBchecked/topic/424706/Ockhams-razor.
Loren Collado (GREEN). NOVEMBER 1st.
Anna Romeo
ReplyDeleteRed Class:
1. The geocentric model was developed thousands of years ago by Greek philosophers. The geocentric models theory was that the
Earth is the center of the solar system.
The heliocentric model, which means that the sun is the center of the solar system.
Source: http://www.universetoday.com/guide-to-space/the-solar-system
2. There were only 7 objects visible to the ancients, the Sun and the Moon, plus the 5 planets, Mercury, Venus, Mars, Jupiter and Saturn. It was obivous the planets were on the celestial sphere since the Moon clearly passes in front of the Sun and planets, plus Mercury and Venus can be seen to transit the Sun. Placing the planets in order from the Earth it was now called the geocentric solar system model.
Source: http://zebu.uoregon.edu/~js/ast221/lectures/lec06.html.
3. In a book called "On the Revolutions of the Heavenly Bodies" that was published as Copernicus lay on his deathbed. Copernicus proposed that the Sun, not the Earth, was the center of the Solar System. Such a model is called a Heliocentric System.
Source: http://csep10.phys.utk.edu/astr161/lect/retrograde/copernican.html.
4. The primary reason for developing the equatorial system for the Celestial Sphere was to follow the position of the Sun, Moon, and planets in the sky.
Source: http://zebu.uoregon.edu/~js/ast221/lectures/lec06.html.
This is Anthony Pieters from the red class. My e-mail address is antman225@aol.com, today is 11/3/09.
ReplyDelete1. The difference between the geocentric model and the heliocentric model theory is that the geocentric model theory says the earth is the center of the universe. The heliocentric model theory says the sun in the center of the universe. http://www.universetoday.com/guide-to-space/the-solar-system/difference-between-geocentric-and-heliocentric/
date read: 11/3/09
2. Mercury, Venus, Mars, Jupiter, and Saturn are visible from Earth
http://zebu.uoregon.edu/~js/ast221/lectures/lec06.html
date viewed: 11/3/09
3. In the heliocentric model it shows all the planets lined up facing the sun, this is called modern ordering of the planets
http://csep10.phys.utk.edu/astr161/lect/retrograde/copernican.html
date viewed:11/3/09
4. A celestial sphere is a sphere where it is wide at the radius. this is related to the assignment because they use it to locate the moon and other planets
Lianna Wilson (Red Class)
ReplyDelete1. The difference between Geocentric model and Heliocentric model is that Geocentric model shows that the earth is in the center of the solar system and Heliocentric model shows that the sun is in the middle of the solar system.
2. The orbit of the planets were described in the Geocentric model as each planet orbited, like a circle, around the earth.
3. The orbit of the planets are shown in the Heliocentric model with all the planets circling the center of the solar system, which is the sun.
4. An inferior planet is a planet which orbits the Sun inside the Earth's orbit. The inferior planets are Mercury and Venus. This relates to the assignment because, it is about the way the planets orbit around the solar system.
My source is http://sse.jpl.nasa.gov/index.cfm
ReplyDeleteLianna Wilson (Red Class)
Mesam Hussain Blue
ReplyDelete1.The difference between geometric and heliocentric is that in geocentric the earth is the center of the solar system, it doesn't move and ever planet revolves around it. In Heliocentric the sun is in the center every planet revolves around the sun.
http://astronomy.nmsu.edu/nicole/teaching/ASTR110/lectures/lecture11/slide02.html
2.In Geocentric the Earth was in the center. Mercury was the 1st planet from the earth. Venus was the 2nd planet from the earth mars was the 3rd planet from the earth Jupiter than Saturn.
http://gbgm-umc.org/umw/bible/images/ptolmai2.jpg
3.In Heliocentric the Sun is in the middle. The planets that orbit are Mercury, Venus,Earth,Mars,Jupiter,Saturn. In that order. It shows that all the planets lined up to to face the sun.
http://amazing-space.stsci.edu/resources/explorations/groundup/lesson/basics/g37/graphics/g37_copernicus.gif
4.The Celestial sphere was the system coordinates for geocentric models, to find planets, moons and the sun.
http://stars.astro.illinois.edu/celsph.html
Katherine Lockward- Green Class
ReplyDelete1. The difference between the Geocentric and Heliocentric models is that the heliocentric modle states that the sun is in the center and all the planets and the moon orbit the sun. But the geocentric modle say that the earth is in the center and the sun,moon, and stars all orbit the earth. http://wiki.answers.com/Q/What_is_the_differnce_between_geocentric_and_heliocentric_theories
2.The observed orbits of those planets were explained in the Geocentric model to be orbiting around the erath like circle.
3. The observed orbits of those planets were explained in the Heliocentric model because all of those plantes are to be circling the center of the solar system.
4. Superior Planet - "A planet which orbits the Sun outside of the Earth's orbit. The superior planets are Mars, Jupiter, Saturn, Uranus, Neptune, most of the minor planets. Superior planets orbit the Sun more slowly than the Earth."
http://www.heavens-above.com/glossary.aspx?lat=0&lng=0&loc=B&alt=0&tz=CET&term=superior+planet
Hey Mr. Barkan.
ReplyDeletethis is Tesah Reyes from Blue Class and this is my answer to the questions.
1. The difference between the Geocentric and Heliocentric models of our solar system is that Geocentric models occur with the earth being in the center.While a Heliocentric model has to do with the sun centered in the solars system.
http://www.universetoday.com/guide-to-space/the-solar-system/difference-between-geocentric-and-heliocentric/
2. According to the Geocentric model, the earth is supposed to be centered, but as Merecury, Venus, Mars, Jupiter, and Saturn, orbit, they appear to be in the in a order outwards from the center where the earth is.
http://farside.ph.utexas.edu/teaching/301/lectures/node151.html
3. The order of the planets Mercury, Venus, Earth, Mars, Jupiter, and Saturn, appear to be closest to the sun and that is why this is called the heliocentric model of the solar system.
http://farside.ph.utexas.edu/teaching/301/lectures/node151.html
4. Aristotle's Ether was convinced that the Earth was in the center of the universe.After making the four elements; earth, water, air, and fire, he decided to make a 5th element called ether.He made this element according to the sun, moon, and stars.
http://www.windows.ucar.edu/tour/link=/people/ancient_epoch/aristotle.html&edu=high
Hello, MR. Barkan this is Loren Collado from the GREEN class. DATE is November 1st; here are my answers and sources:
ReplyDelete1. The Geocentric Model states that the Earth was the center of our Solar System and that the other planets, stars and the sun revolved around it. The Heliocentric Model had the sun in the center of our solar system and all the planets and stars revolving around it.
SOURCE: Denning, Jenifer. Geocentric Theory vs. Heliocentric Theory. 5 May 1999. 1 NOV 2009. http://www.emporia.edu/earthsci/amber/students/denning/index.htm,
2. Mercury, Venus, Mars, Jupiter and Saturn were believed to revolve around the Earth in a perfect circular path but their paths would change to "smaller circular loops" called epicycles at times.
SOURCE: Hildreth, Scott. "Geocentric vs. Heliocentric Theory Comparison Study Sheet Sample Answers & Comments". Chabot College Astronomy. 1 NOV 2009. http://www.chabotcollege.edu/faculty/shildreth/astronomy/geoanswers.html
3. Mars, Jupiter and Saturn showed backward orbits when Earth was in its faster orbit around the SUN and caught up to the outer planets. Mercury and Venus showed this motion when their orbits' view came from behind the sun in one direction but as it got farther from the sun they would turn around as it went between EARTH and the SUN.
SOURCE: Hildreth, Scott. "Geocentric vs. Heliocentric Theory Comparison Study Sheet Sample Answers & Comments". Chabot College Astronomy. 1 NOV 2009. http://www.chabotcollege.edu/faculty/shildreth/astronomy/geoanswers.html
4. Occams Razor states that between two theories the simplest one is the preferred. This term is related to this assignment because there were two theories of our solar system, the Geocentric model (earth center) and the Heliocentric model (sun center)that gave different centers of our universe. The Geocentric model was preferred because it was simpler to think that everything in the sky (planets, constellations, the moon, etc.) was moving because it was moving around the Earth for it was the center, rather than the Earth was moving around the sun as well as the other planets and everything else in the solar system. Even though there was enough evidence to back the theory that the Earth was moving as well, we didnt believe that because we didn’t feel the Earth moving.
SOURCE: "Ockham’s Razor". Encyclopedia Britannica. 2009. Encyclopedia Britannica Online. 01 Nov. 2009. http://www.britannica.com/EBchecked/topic/424706/Ockhams-razor.
Loren Collado (GREEN). NOVEMBER 1st.
1.The difference between heliocentric model is that its not in the exact center and all planets orbit the sun. The geocentric model is when the earth is in the middle and the moon and stars goes around earth. 2. All the planets Mercury, Venus, Mars, Jupiter and Saturn in the geocentric model have to orbit around Earth [the planet]. All the planets executed a circular orbit around Earth. The orbits were believed to be circular for philosophical reasons. The ancients’ believed a circle was the most perfect shape it must of followed a heavenly objective and must of execute circular orbits. 3.The orbits were explained in the heliocentric in three ways 1.If the Earth is rotating about its axis, and orbiting around the Sun, then the Earth must be in motion. However, we cannot ``feel'' this motion. Nor does this motion give rise to any obvious observational consequences. Hence, the Earth must be stationary.
ReplyDelete2.If the Earth is executing a circular orbit around the Sun then the positions of the stars should be slightly different when the Earth is on opposite sides of the Sun. This effect is known as parallax. Since no stellar parallax is observable (at least, with the naked eye), the Earth must be stationary. In order to appreciate the force of this argument, it is important to realize that ancient astronomers did not suppose the stars to be significantly further away from the Earth than the planets. The celestial sphere was assumed to lie just beyond the orbit of Saturn.
3.The geocentric model is far more philosophically attractive than the heliocentric model, since in the former model the Earth occupies a privileged position in the Universe. Source: Richard Fitzpatrick 2006-02-02 “Historical background” Nov.2nd.2009 http://farside.ph.utexas.edu/teaching/301/lectures/node151.html 4.Occam's razor relates to this assignment because in order to make the earth be the center of the solar system, the planet's would have strange, complicated orbits. If the sun was in the center of the solar system, all of the planets have simple elliptical orbits. Source:” Lecture 4 -- Geocentric and Heliocentric Systems" Nov.1st.2009 http://www.astro.psu.edu/users/rbc/a1/lec4n.html
1.The difference between heliocentric model is that its not in the exact center and all planets orbit the sun. The geocentric model is when the earth is in the middle and the moon and stars goes around earth. 2. All the planets Mercury, Venus, Mars, Jupiter and Saturn in the geocentric model have to orbit around Earth [the planet]. All the planets executed a circular orbit around Earth. The orbits were believed to be circular for philosophical reasons. The ancients’ believed a circle was the most perfect shape it must of followed a heavenly objective and must of execute circular orbits. 3.The orbits were explained in the heliocentric in three ways 1.If the Earth is rotating about its axis, and orbiting around the Sun, then the Earth must be in motion. However, we cannot ``feel'' this motion. Nor does this motion give rise to any obvious observational consequences. Hence, the Earth must be stationary.
ReplyDelete2.If the Earth is executing a circular orbit around the Sun then the positions of the stars should be slightly different when the Earth is on opposite sides of the Sun. This effect is known as parallax. Since no stellar parallax is observable (at least, with the naked eye), the Earth must be stationary. In order to appreciate the force of this argument, it is important to realize that ancient astronomers did not suppose the stars to be significantly further away from the Earth than the planets. The celestial sphere was assumed to lie just beyond the orbit of Saturn.
3.The geocentric model is far more philosophically attractive than the heliocentric model, since in the former model the Earth occupies a privileged position in the Universe. Source: Richard Fitzpatrick 2006-02-02 “Historical background” Nov.2nd.2009 http://farside.ph.utexas.edu/teaching/301/lectures/node151.html 4.Occam's razor relates to this assignment because in order to make the earth be the center of the solar system, the planet's would have strange, complicated orbits. If the sun was in the center of the solar system, all of the planets have simple elliptical orbits. Source:” Lecture 4 -- Geocentric and Heliocentric Systems" Nov.1st.2009 http://www.astro.psu.edu/users/rbc/a1/lec4n.html
JULIE URPRASAD BLUE CLASS1.The difference between heliocentric model is that its not in the exact center and all planets orbit the sun. The geocentric model is when the earth is in the middle and the moon and stars goes around earth. 2. All the planets Mercury, Venus, Mars, Jupiter and Saturn in the geocentric model have to orbit around Earth [the planet]. All the planets executed a circular orbit around Earth. The orbits were believed to be circular for philosophical reasons. The ancients’ believed a circle was the most perfect shape it must of followed a heavenly objective and must of execute circular orbits. 3.The orbits were explained in the heliocentric in three ways 1.If the Earth is rotating about its axis, and orbiting around the Sun, then the Earth must be in motion. However, we cannot ``feel'' this motion. Nor does this motion give rise to any obvious observational consequences. Hence, the Earth must be stationary.
ReplyDelete2.If the Earth is executing a circular orbit around the Sun then the positions of the stars should be slightly different when the Earth is on opposite sides of the Sun. This effect is known as parallax. Since no stellar parallax is observable (at least, with the naked eye), the Earth must be stationary. In order to appreciate the force of this argument, it is important to realize that ancient astronomers did not suppose the stars to be significantly further away from the Earth than the planets. The celestial sphere was assumed to lie just beyond the orbit of Saturn.
3.The geocentric model is far more philosophically attractive than the heliocentric model, since in the former model the Earth occupies a privileged position in the Universe. Source: Richard Fitzpatrick 2006-02-02 “Historical background” Nov.2nd.2009 http://farside.ph.utexas.edu/teaching/301/lectures/node151.html 4.Occam's razor relates to this assignment because in order to make the earth be the center of the solar system, the planet's would have strange, complicated orbits. If the sun was in the center of the solar system, all of the planets have simple elliptical orbits. Source:” Lecture 4 -- Geocentric and Heliocentric Systems" Nov.1st.2009 http://www.astro.psu.edu/users/rbc/a1/lec4n.html
hey this is adeola ademoye from the red class, my email adress is diamondzpearlz95@gmail.com
ReplyDelete1. the difference between the geocentric and the heliocentric model of our solar system is that people who believe in the geocentric model ( also known as earth-centered) think that the earth is in the center of the universe and every thing else in the skye revolves around it. people who believe in the heliocentric model believe that the sun is in the center of the universe and everything in the skye like the planets and the stars revolve around it. here is my source: sorry couldnt copy and paste, but if you go on wikianswers.com you can type in : what is the difference between geocentric and heliocenric and which is correct?
2. because earth was at the center of the universe the planets were all revolving around earth including the sun and the moon, each planet moved arond the earth on a different sphere. the planets were lined up in an order like this:moon, mercury,venus, sun, mars, jupiter, and saturn. this is my source: you can go on ask.com and search how were the orbits of the planets explained and click on the third link.
3. all the planets revovled around the sun in the heliocentric model of the solar system.the planets were all going around the sun in a counter clock wise fashion. the planets were lined up like this: mercury, venus, earth, mars,jupiter,and saturn. the source from the scond answer is the same as this one.
4.parallax: is when there is a noticeable shift in the position of stars. this has something to do with the project becuase this was a fault of the heliocentric theory back in olden days before newtons laws of motion it was impossible to imagine motion without feeling it.
this is my source: ask.com, search how were the orbits of the planets explained click on the second link
Queens High of Teaching
ReplyDeleteNavjot Gill 11.3.09
Red Class :)
1. The difference between Heliocentric and Geocentric Models is that a geocentric model is an Earth centered model. While a heliocentric model is a model of stars, planets, etc around the Sun.
2. Observed orbits of Mercury,Venus, Mars, Jupiter and Saturn are described in a geocentric model as that the planets had moved around in circles as the planets revolved around Earth.
3. Observed orbits of the planets in a heliocentric model was that Earth and other planets rotate and revolve around the Sun at different speeds in elliptical orbits with some eccentricity.
4. Elliptical Orbit. An elliptical orbit is associated with a modern heliocentric model because it shows that the planets revolve and rotate the sun at different speeds in ELLIPTICAL ORBITS with some eccentricity. (As said in question #3)
SOURCES:
Callister, Jeffery (2008)
Prentice Hall Earth Science The Physical Setting- "Motions of Earth, Moon, and Sun"
Pg 51-55 :)
Queens High of Teaching
ReplyDeleteNavjot Gill- Red Class 11.2.09 :)
1. The difference between heliocentric and geocentric models is that a heliocentric model is a sun centered model. A geocentric model is an Earth centered model.
2. Observed orbits of Mercury, Venus, Mars, Jupiter and Saturn in the geocentric model is that they moved around in circles as the planets revolved around the Earth.
3. Observed orbits of the planets in the heliocentric model is that Earth and the other planets rotate and revolve around the Sun at different speeds in elliptical orbits with some eccentricity.
4. Elliptical Orbit. Elliptical orbits are associated with heliocentric models because the planets rotate and revolve ariybd the sun at different rate of speeds in ELLIPTICAL ORBITS.
SOURCES:
Callister, Jeffery (2008)
Earth Science The Physical Setting
"Motions of the Earth, Moon, and Sun"
Pg 54-55
stephanie sharkey
ReplyDeletegreen class
november 3,2009
1. the difference between the heliocentric and geocentric models is that the geocentric model places the earth at the center of the universe. the heliocentric model place the sun at the center of the universe.
2. observed orbits of mercury, venus, mars, jupiter, and saturn in the geocentric model is that they moved around the earth in circles with the other planets.
3. observed orbits of the other planets in the heliocentric model is that earth and other planets rotate and revolve around the sun at different speeds in elliptical orbits with some eccentricity.
4. elliptical orbits are associated with heliocentric models because the planets rotate and revolve around the sun at different speeds in elliptical orbits.
sources:
http://www.universetoday.com/guide-to-space/the-solar-system/difference-between-geocentric-and-heliocentric/
http://www.windows.ucar.edu/tour/link=/physical_science/physics/mechanics/orbit/ellipse.html&edu=high
Tatiana Castellanos
ReplyDeleteGreen Class
11-3-09
1. The difference between the geocentric and heliocentric models of our universe is that the geocentric model states that the planets revolve around the earth and that the earth is the center of the universe. The heliocentric model states that the sun is the center of the universe and that the planets revolve around the sun.
- SOURCE: Copernicus, Nicolaus. "The Copernican (Heliocentric, or Sun-centered) Model of the Solar System" ASTRONOMY
http://astronomy.nmsu.edu/nicole/teaching/ASTR110/lectures/lecture11/slide02.html
2. The geocentric model explained that the earth was "the center of the universe" because mercury and venus were never more than 28 and 47 degrees from the sun and the brightness of venus never changed.
-SOURCE: "geocentric Theory"
http://science.jrank.org/pages/2999/Geocentric-Theory.html
-SOURCE: Cessna, Abby. "Geocentric Model" UNIVERSE TODAY
http://www.universetoday.com/guide-to-space/the-solar-system/geocentric-model/
3. The varying of brightness was due to how far away a planet is from earth. certain planets move at different rates because some have smaller orbits than others do.
-SOURCE: "The heliocentric system" THE COPERNICAN MODEL: A SUN CENTERED SOLAR SYSTEM
http://csep10.phys.utk.edu/astr161/lect/retrograde/copernican.html
4. Cosmology - the study of the universe.
This word is related to this assignment because the heliocentric and geocentric theories had to do with the universe.
Andrew Alarcon from Blue class:
ReplyDelete1) Geocentric is a model of the the solar system with the Earth being in the center of the solar system. Heliocentric is a model of the solar system with the sun being in the center of the solar system. Source: http://www.universetoday.com/guide-to-space/the-solar-system/difference-between-geocentric-and-heliocentric/
2) In the Geocentric model, Mercury, Venus, Mars, Jupiter, and Saturn all orbit the Earth. Source: http://www.universetoday.com/guide-to-space/the-solar-system/geocentric-model/
3) In the Heliocentric model, all of the planets face the sun and orbit it. Source: http://www.universetoday.com/guide-to-space/the-solar-system/heliocentric-model/
4) Parallax is the illusion of an object when it is looked at two different perspectives. This is related to this assignment because the Geocentric model and the Heliocentric model are two different perspectives of the same solar system. Source: http://www.universetoday.com/guide-to-space/astronomy/parallax/
Goodness, when I first got on here there was only two comments and now there are like fifty!
ReplyDeleteThis is Michael Maloney, From Red Class.
The difference between a Heliocentric model and a Geocentric model of our solar system is that a Geocentric has the earth as the center of the solar system and the moon and sun are orbiting around the earth. Heliocentric is the one we use now, with the sun at the center of the solar system and the moon orbiting around the earth.
In the Geocentric model, the planets orbited around the Earth. The orbits were explained by the planets orbited around a point that orbited around the sun. The orbit around the point was called a Epicycle.
In a heliocentric model, the planets rotated around the sun, but were explained by the fact the earth was in orbit too, so it was never the same distance from the sun.
A parallax is the half the angel of a star as the earth moves form one side of the sun to another.
Lochner,Jim “Heliocentric Solar System”
http://imagine.gsfc.nasa.gov/docs/ask_astro/answers/980212a.html
Viewed on 10/3/09
“The Copernican Model”
http://csep10.phys.utk.edu/astr161/lect/retrograde/copernican.html
Viewed on 10/3/09
“The universe of Aristotle and Ptolemy”
http://csep10.phys.utk.edu/astr161/lect/retrograde/aristotle.html
Viewed on 10/3/09
Katherine Taylor
ReplyDeleteBlue Class
>11.02.09<
1. The difference between heliocentric and geocentric models of the solar system is that the heliocentric model is sun centered. The Geocentric model is centered around the earth
http://www.universetoday.com/guide-to-space/the-solar-system/difference-between-geocentric-and-heliocentric/
2. In the geocentric model Mercury,Venus,Mars,Saturn, and Jupiter orbited the center of the solar system which is the Earth.
http://zebu.uoregon.edu/~js/ast221/lectures/lec06.html
3. The Observed orbits of the planets in the heliocentric model is that all the planets orbited the sun.
http://zebu.uoregon.edu/~js/ast221/lectures/lec06.html
4.Epicycles: The center of which moves on the circumference of a larger circle at whose center is the earth and the circumference of which describes the orbit of one of the planets around the earth.
http://www.thefreedictionary.com/epicycle
Kayla Mustipher from the Green Class
ReplyDelete1)In an Geocentric Model of our Solar System it showed that the Sun, planets, and stars orbits around the planet Earth. In the Heliocentric model of our solar system it showed that the planets orbits around the Sun.
2) The observed orbits of the planets Mercury, Venus, Mars, Jupiter, and Saturn in the Geocentrc model showed that they move in a circle around the planet Earth.
3) The observed orbits of the planets Mercury, Venus, Mars, Jupiter, and Saturn in the Heliocentric nodel showed that all the planets revolve in a circle around the Sun.
4) Cosomology is related to this assignment because cosmology is the scientific study of the Universe. Cosomology explains the theories about the universe, the planets, the sun, and other thing that makes up the universe.
Sources:
* Cessnar,Abby "The difference between Geocentric and Heliocentric Modela" http://www.universetoday.com/guide-to-space/the solar-system/difference-between geocentric-and-heliocentric-model/
* Sigda,Robert B. Ph.D "Astronomy-Models to explain Celestial Motions" pg.449-450 "UPCO's Phyiscal Setting Review" Copyright 2009 by United Publishing Company, Inc.
* "Universe 101- Big Bang" http://map.gsfc.nasa.gov/universe
Iqra Gul
ReplyDeletered class
1. The difference between the geocentric and heliocentric models of our solar system is that the geocentric model was created a thousand years ago by a Greek philosopher named Claudius Ptolemy. In this theory it is to be believed that the earth is in the center of the universe which is relative because geocentric means earth centered. On the other hand the heliocentric theory states that the sun is the center of the universe.
Difference between geocentric and heliocentric
http://www.universetoday.com/guide-to-space/the-solar-system/difference-between-geocentric-and-heliocentric/
last update: august 2, 2009
2. The observed orbits of the planets Mercury, Venus, Mars, Jupiter and Saturn were explained in the geocentric model because all of the planets (Mercury, Venus, Mars, Jupiter and Saturn) orbit can be viewed from the planet earth.
Solar System Cosmology
http://www.astro.ucla.edu/~wright/solar_system.html
Edward L. Wright
Last modified 11 Jan 2004
Jan 11, 2004
3. The heliocentric model show that all of the planets don’t rotate around the earth in stead they rotate around the sun proving that earth is just another planet.
http://www.astro.ucla.edu/~wright/solar_system.html
Edward L. Wright
Last modified 11 Jan 2004
Jan 11, 2004
4. cosmology is when you study the universe and beyond. geocentric and heliocentric relates to this because it is contained in the solar system
Geocentric Theory
http://science.jrank.org/pages/2999/Geocentric-Theory.html
Iqra Gul red class
ReplyDelete1. The difference between the geocentric and heliocentric models of our solar system is that the geocentric model was created a thousand years ago by a Greek philosopher named Claudius Ptolemy. In this theory it is to be believed that the earth is in the center of the universe which is relative because geocentric means earth centered. On the other hand the heliocentric theory states that the sun is the center of the universe.
Difference between geocentric and heliocentric
http://www.universetoday.com/guide-to-space/the-solar-system/difference-between-geocentric-and-heliocentric/
last update: august 2, 2009
2. The observed orbits of the planets Mercury, Venus, Mars, Jupiter and Saturn were explained in the geocentric model because all of the planets (Mercury, Venus, Mars, Jupiter and Saturn) orbit can be viewed from the planet earth.
Solar System Cosmology
http://www.astro.ucla.edu/~wright/solar_system.html
Edward L. Wright
Last modified 11 Jan 2004
Jan 11, 2004
3. The heliocentric model show that all of the planets don’t rotate around the earth in stead they rotate around the sun proving that earth is just another planet.
http://www.astro.ucla.edu/~wright/solar_system.html
Edward L. Wright
Last modified 11 Jan 2004
Jan 11, 2004
4. cosmology is when you study the universe and beyond. geocentric and heliocentric relates to this because it is contained in the solar system
Geocentric Theory
http://science.jrank.org/pages/2999/Geocentric-Theory.html
Iqra Gul red class
ReplyDelete1. The difference between the geocentric and heliocentric models of our solar system is that the geocentric model was created a thousand years ago by a Greek philosopher named Claudius Ptolemy. In this theory it is to be believed that the earth is in the center of the universe which is relative because geocentric means earth centered. On the other hand the heliocentric theory states that the sun is the center of the universe.
Difference between geocentric and heliocentric
http://www.universetoday.com/guide-to-space/the-solar-system/difference-between-geocentric-and-heliocentric/
last update: august 2, 2009
2. The observed orbits of the planets Mercury, Venus, Mars, Jupiter and Saturn were explained in the geocentric model because all of the planets (Mercury, Venus, Mars, Jupiter and Saturn) orbit can be viewed from the planet earth.
Solar System Cosmology
http://www.astro.ucla.edu/~wright/solar_system.html
Edward L. Wright
Last modified 11 Jan 2004
Jan 11, 2004
3. The heliocentric model show that all of the planets don’t rotate around the earth in stead they rotate around the sun proving that earth is just another planet.
http://www.astro.ucla.edu/~wright/solar_system.html
Edward L. Wright
Last modified 11 Jan 2004
Jan 11, 2004
4. cosmology is when you study the universe and beyond. geocentric and heliocentric relates to this because it is contained in the solar system
Geocentric Theory
http://science.jrank.org/pages/2999/Geocentric-Theory.html
Gwendolyn Johnson
ReplyDeleteEarth Science
Green Class
Nov.3, 2009
1. The difference between the Geocentric and Heliocentric models is that the Geocentric model states that the Earth is the center of our universe, with the Sun, Moon, stars and planets orbiting around it. In contrast, the Heliocentric model states that the Sun is the center of our universe, with the Earth and all other planets orbiting it.
Cessna, Abby. “Difference Between Geocentric and Heliocentric”. Difference Between Geocentric and Heliocentric. 2 Aug. 2009. 3 Nov. 2009.
http://www.universetoday.com/guide-to-space/the-solar-system/difference-between-geocentric-and-heliocentric/
2. The Geocentric model stated that the planets each orbited in a small circle known as an epicycle, this epicycle then orbited a bigger circle considered the deferent, located around the Earth.
Cessna, Abby. “Geocentric Model”. Geocentric Model. 17 Jun. 2009. 3 Nov. 2009.
http://www.universetoday.com/guide-to-space/the-solar-system/geocentric-model/
3. The Heliocentric model stated the planets orbited the Sun, with the earth third from the Sun in this model/theory.
Cessna, Abby. “Heliocentric Model”. Heliocentric Model. 22 Jun. 2009. 3 Nov. 2009.
http://www.universetoday.com/guide-to-space/the-solar-system/heliocentric-model/
4. An epicycle is a small circle where at the center it orbits a larger circle; this word has to do with this assignment because in the Geocentric theory it was believed the planets orbited in an epicycle around the Earth.
Cessna, Abby. “Geocentric Model”. Geocentric Model. 17 Jun. 2009. 3 Nov. 2009.
http://www.universetoday.com/guide-to-space/the-solar-system/geocentric-model/
Shaniya Haughton from the Green Class
ReplyDelete1. The difference between the geocentric and the heliocentric is that the geconcentric model, was the Earth center of the solar system and the heliocentric model, was the Sun center of the solar system.
Title:- Universe Today
http://www.universetoday.com/guide-to-space/the-solar-system
2.The orbit of the planets were described in the Geocentric model is because it believed that each planet orbited around like a circle around the earth.
Title:-Planets and the Celestial Sphere http://zebu.uoregon.edu/~js/ast221/lectures/lec06.html
3.Earth in orbit around Sun means that the Earth is in motion. Before the discovery of Newton's law of motion, it was impossible to imagine motion without being able to `feel' it. Clearly, no motion is detected. For example, the wind does blow in a constant direction.
Title:-Problems for Heliocentric Theory http://zebu.uoregon.edu/~js/ast221/lectures/lec06.html
4."Superior Planet"- The planets Mars, Jupiter, Saturn, Uranus, Neptune and Pluto are called superior planets because their orbits are farther from the Sun than Earth's orbit
Title:-Superior Planet http://space.about.com/od/glossaries/g/superiorplanets.htm
Done on November 3, 2009
Kayla Mustipher from the Green Class
ReplyDelete1) In an Geocentric Model of our solar system it showed that the sun, plents, and the stars orbits around the planet Earth. The Heliocentric Model of our Solar System, showed that the sun was the center of the solar system and that the planets orbits around it.
2)The obseved orbits of the planets Mercury, Venus, Mars, Jupiter, and Saturn in the Geocentric model showed that they move in a circle around the planet Earth.
3) The observed orbits of the planets Mercury, Venus, Mars, Jupiter, and Saturn in the Heliocentric model showed that all the planets circled around the sun.
4) Cosomology is related to this assignment because cosmology is the scientific study of the universe. Cosomology explains the theories about the universe, the planets, the sun, and other things that makes up the universe.
Sources:
* Cessnar,Abbay "The difference between Geocentric and heliocentric models" http://universetoday.com/guide-to-space/the solar-system/heliocentric model/
*Sigda.Robert b. Ph.d "Astronomy-Models to explain Celestial motions." pg.449-450 "UPCO's Physical Setting Review" Copyright 2009 by United Publishing Company, Inc
* "Universe 101- Big Bang Theory" http://map.gsfc.masa,gov/universe
helllo this is philip jeanty from the red class
ReplyDelete1. A geocentric model of the solar system shows the solar system with the earth in the middle, and a heliocentric model of the solar system shows the solar system with the sun in the middle.
2. The orbits of the planets were observed because they were all visible from planet earth.
3. In the heliocentric model of the solar system the planets surround the sun and earth is just another planet.
4. Cosmology is a type of world view. It is related to this assignment because the geocetric and heliocetric models are two different world views
Janelle Beltran. green class. Earth science.
ReplyDelete1.The Difference is that a heliocentric modle says that the sun is in the center but not the exact center and all the other planets and the moon orbit the sun. But a geocentric modle states that the earth was in the center and that the sun moon and stars all went around earth. That is the difference between them.
2. In addition to the stars, the Sun, and the Moon, there are several other objects in the sky which are easily visible at night.
3.In astronomy, heliocentrism is the theory that the Sun is stationary and at the center of the universe they rotate and revlove.
4. An oval orbit shape is called an ellipse.All of the planets in our Solar System move along elliptical orbits.In the heliocentric model, the 12 positions cover an entire range of possible locations of Venus around the Sun as viewed from Earth. In the geocentric system, the 12 positions cover an entire range of the possible locations of Venus on its elliptical path as it travels around the Earth.
Hi this is Alyssa Kim Ang from the green class.
ReplyDelete1. The difference between geocentric and heliocentric is that the heliocentric models theory says that the sun is the middle of the solar system also it says that the moon would travel around planet earth. The moon travels around the sun together with earth.
SOURCE:http//astronomy.nmsu.edu/nicole/teaching/ASTR110/lectures/lecture11/slide02.html
TITLE:The Geocentric and Heliocentric Models.
The geocentric says that the earth is the center of the universe and the sun moon and stars and the planets would travel around the earth.
TITLE: Difference between Geocentric and Heliocentric
SOURCE:http://www.universetoday.com/guide-to-space/the-solar-system/difference-between-geocentric-and-heliocentric/
2. The geocentric shows that when ever the sun would circle around earth mars would make a complete rotation.
TITLE:Geocentric Model
SOURCE:http://www.astro.utoronto.ca/~zhu/ast210/geocentric.html
3.The heliocentric shows that all the planets and the stars all rotate around the sun.
TITLE:Geocentric Heliocentric
SOURCE:http://astronomy.nmsu.edu/nicole/teaching/ASTR110/lectures/lecture11/slide02.html
4.The superior planets are relevant to this assignment because the geocentric and heliocentric model shows how the superior planets rotate.
SOURCE:http://farside.ph.utexas.edu/~rfitzp/syntaxis/kepler/node5.html
TITLE: the superior planets.
Derek Owens Blue Class
ReplyDelete1.The difference between Geocentric and Heliocentric is that Heliocentric basically says that the sun is in the middle of the solar system and Geocentric says that the earth is in the middle of the solar system.
2. The orbit of the planets was described in the Geocentric model because every planet orbited in a circle around the earth.
3. They were explained in the Heliocentric model because all the planets are supposed to orbit around the center of the solar system.
4.The words “Superior Planets” follows this lesson because Superior Planets are planets like Neptune ,Uranus, etc and those planets orbit around the center of the solar system.
source-
http://wiki.answers.com/Q/What_is_the_difference_between_geocentric_and_heliocentric_theoriesolemaic System
**Chrissy Garcia : Blue Class : 10-27-09
ReplyDelete*1.) The difference between the Geocentric and the Heliocentric models of our solar system is that the Geocentric model demonstrates the Earth as the center of our solar system (hence: geo = Earth, centric = center) and the Heliocentric model demonstrates the Sun as the center of our solar system (hence: helio = Sun, centric = center).
Vogt, Nicole. "Geocentric and Heliocentric Models." New Mexico State University. 2006. 27 Oct. 2009.
http://astronomy.nmsu.edu/nicole/teaching/ASTR110/lectures/lecture11/slide02.html
Gore, Pamela. "Models of the Solar System." Georgia Perimeter College. 2005. 27 Oct. 2009.
http://facstaff.gpc.edu/~pgore/Earth&Space/GPS/solarsystem.html
The Gale Group. "Geocentric Theory." The Gale Group. 2009. 27 Oct. 2009.
http://science.jrank.org/pages/2999/Geocentric-Theory.html
*2.) In the Geocentric model of our solar system, it was explained that the planets Mercury, Venus, Mars, Jupiter, and Saturn moved along epicycles around the Earth.
The Gale Group. "Geocentric Theory." The Gale Group. 2009. 27 Oct. 2009.
http://science.jrank.org/pages/2999/Geocentric-Theory.html
*3.) In the Heliocentric Model of our solar system, the observed orbits of the planets showed that plantets followed elliptical orbits around the Sun. Specifically, Venus and Mercury were noted to behave like the moon does around Earth, except around another object other than the Earth.
The Gale Group. "Geocentric Theory." The Gale Group. 2009. 27 Oct. 2009.
http://science.jrank.org/pages/2999/Geocentric-Theory.html
*4.)Inferior planets are planets that are closer to the Sun than Earth is. Those planets include Mercury and Venus. By studying these two planets, the famous astronomer Galileo observed that they moved very much like the Earth's moon, which lead him to believe that they were revolving around a celestial object other than Earth.
Arnett, Bill. "An Overview of the Solar System." 2008. 27 Oct. 2009.
http://nineplanets.org/overview.html
This is Mariah Mingoes, from Red Class. =) I totally clicked the cool choice on the poll, so you should give me five extra points. :)
ReplyDelete1) There's a difference between the Geocentric and Heliocentric models of the Earth.
2)The Gecontric model is a theory in which everything in the Earth is the center of the Universe and everything in the universe, stars, planets and the Sun revolve around. The Heliocentric is a belief that the Sun is the center of the Universe and everything else in the universe revovles around it.
3)The orbit of the planets in the Geocentric is a circular pattern around the Planet Earth. They decided on this when they saw Mars, Venus, Mercury, Jupiter and Saturn from Earth.
4)The orbit that is beleived to occur in the Heliocentric is in a counter-clockwise motion. Once all the planets were aligned, the only different motion was the rotation of the Moon around the Sun. Soon, they discovered that the Moon revolved with the Earth around the Sun.
5)Cosmology relates closely to this topic. Its the study of the history and structure of the Universe. There are many things in the Universe that need to be documented. Such as the Geocentric and Heliocentric theories.
Hello im Mindy Boucard and im in the Green class
ReplyDelete#1 The difference between heliocentric and geocentric models is that they are not excatly in the center of the earth .The Geocentric model of our solar system shows all of the planets and satellites in the solar system surrounding the earth. The heliocentric model of the solar system shows the sun as the center of the solar system.that is the difference
#2 each of the planets orbits are in the geocentric system orbits in a circular motion around the planet earth.
#3 many people say that in the heliocentric model of the solar system,most of these different planets orbit the sun. earth has the same kind of brightness
#4 they are all related in different ways because they all are combined with the earths cosmology
my sources are from-www.Universetoday.com/guide-to-space/the-solar-system.
Hello im Mindy Boucard and im in the Green class
ReplyDelete#1 The difference between heliocentric and geocentric models is that they are not excatly in the center of the earth .The Geocentric model of our solar system shows all of the planets and satellites in the solar system surrounding the earth. The heliocentric model of the solar system shows the sun as the center of the solar system.that is the difference
#2 each of the planets orbits are in the geocentric system orbits in a circular motion around the planet earth.
#3 many people say that in the heliocentric model of the solar system,most of these different planets orbit the sun. earth has the same kind of brightness
#4 they are all related in different ways because they all are combined with the earths cosmology
my sources are from-www.Universetoday.com/guide-to-space/the-solar-system.
1.Geocentric models is the belief that the earth is the middle or center of the universe and every object orbits around it.Heliocentric is the belief that the sun is the center of the universe and the planets orbit around it. 2.As Earth was at the the planets moved around in circles as they revolved around earth. 3.With heliocentric models is that earth along with the other planets orbit around sun at different speeds. 4.Elliptical orbits is a keepler orbit with the eccentricity greater tha 0 but less than 1. Sedric Breland. Sources:absoluteastronomy.com/topics/Geocentricmodel.www.universetoday.com/guide-to/heliocentric-model/
ReplyDeleteHi Mr.Barkan its Jada Cooper and Im in the Green Class here are my answers!
ReplyDelete1. The difference between geocentric and heliocentric models are that geocentric models have a theory stating that the Earth is the center of the universe, whlie heliocentric models' theory states that the Sun is the center of the universe.
SOURCE: www.Universetoday.com/guide-to-space/the-solar-system page updated: August 2nd, 2009
Title: Difference between geocentric and heliocentric
2. Mecury, Mars, Venus, Jupiter, and Saturn can be seen from Earth. The planets move slowly enough that their position changed only slightly.
SOURCE: www.opencourse.info/astronomy/.../05.motion_ planets /
Title: 5.1 Direct and Retrograde Motion
3. The heliocentric model shows that all of th planets line up in front of the Sun.
SOURCE: csep10.phys.utk.edu/astr161/lect/retrograde/copernican.html
Title: The Heliocentric System
4. Cosmology is the study of the universe from the perspective of physics. Cosmology is related to geocentric and heliocentric models because it has to deal with the solar system and the universe.
SOURCE: www.pa.msu.edu/courses/1997spring/PHY232/.../cosmo.html
Title: What is cosmology?
QHST
ReplyDeleteXavier Evans
11-3-O9
Earth Science
The difference is the Heliocentric model says the sun is in thee center. It is not at the exact center. All the other planets and the moon orbit the sun. The Geocentric model states the earth is in the center and the sun moon and stars go around it.
http://wiki.answers.com/Q/What_is_the_difference_between_geocentric_and_heliocentric_theories
The Planets were observed orbits of the planets were The Moon, Mercury,Venus,The Sun, Mars, Jupiter, and Saturn.
http://www.spacedaily.com/reports/Mystery_Solved_How_The_Orbits_Of_Extrasolar_Planets_Became_So_Eccentric.html
Observed orbits of the planets state that in the Heliocentric model all planets dont go around the Earth. It says that they go around the sun.
http://wiki.answers.com/Q/What_is_the_difference_between_geocentric_and_heliocentric_theories.
Cosmology: A branch of astronomy, is the study of the largest-scale structures and dynamics of our universe
This is related to our assignment because it has something to do with the solar system and universe
http://www.google.com/search?hl=en&rlz=1T4ACGW_enUS335US335&defl=en&q=define:cosmology&ei=JwjxSrmWItLR8QbVnbD2CA&sa=X&oi=glossary_definition&ct=title&ved=0CAoQkAE
QHST
ReplyDeleteXavier Evans
11-3-O9
Earth Science
The difference is the Heliocentric model says the sun is in thee center. It is not at the exact center. All the other planets and the moon orbit the sun. The Geocentric model states the earth is in the center and the sun moon and stars go around it.
http://wiki.answers.com/Q/What_is_the_difference_between_geocentric_and_heliocentric_theories
The Planets were observed orbits of the planets were The Moon, Mercury,Venus,The Sun, Mars, Jupiter, and Saturn.
http://www.spacedaily.com/reports/Mystery_Solved_How_The_Orbits_Of_Extrasolar_Planets_Became_So_Eccentric.html
Observed orbits of the planets state that in the Heliocentric model all planets dont go around the Earth. It says that they go around the sun.
http://wiki.answers.com/Q/What_is_the_difference_between_geocentric_and_heliocentric_theories.
Cosmology: A branch of astronomy, is the study of the largest-scale structures and dynamics of our universe
This is related to our assignment because it has something to do with the solar system and universe
http://www.google.com/search?hl=en&rlz=1T4ACGW_enUS335US335&defl=en&q=define:cosmology&ei=JwjxSrmWItLR8QbVnbD2CA&sa=X&oi=glossary_definition&ct=title&ved=0CAoQkAE
Jerome J. Joseph
ReplyDeleteRed Class, Mr. Barkan
Montessori Earth Science
1. The difference between the two models is that the geocentric model states that the earth was in the center and that the sun, moon and stars all went around the Earth. The Sun, Moon, planets, and stars could be seen moving about Earth along circular paths day after day. The heliocentric model argues that the sun is the central body of the solar system and perhaps of the universe. The Earth, moon and the other planets were believed to move around the Sun in a counter-clockwise motion. Nicolaus Copernicus was the first astronomer to formulate a comprehensive heliocentric cosmology. Both of these models were theories.
2. To explain the motion of the planets, complicated models in which planets moved along circles, called epicycles, which illustrated circular orbits about the earth. These geocentric models were able to explain, for example, why Mercury and Venus never move more than 28° and 47° respectively from the Sun.
3. The heliocentric model explained that that during eclipses of the Moon, Earth's shadow on the moon is always a circle of about the same radius wherever the Moon is on the sky. Only a round body can always cast such a shadow. In the heliocentric theory, the ecliptic is the projection of Earth’s orbit onto the sky. The heliocentric model shows an elliptical structure around the Sun.
4. Parallax is the apparent displacement of an object as seen from two different points that are not on a line with the object. Nearby objects have a larger parallax than more distant objects when observed from different positions. This means that parallax can be used to determine distance. The term, parallax, is related to this assignment because they use solar parallax pertaining to the heliocentric system. Solar Parallax is the difference in position of the Sun as seen from the Earth's center and the angle subtended by the Sun by Earth’s mean average. The Solar Parallax and Earth’s mean radius calculates an astronomical unit, or AU, which is the first step of establishing the size and expansion age of the Universe. Various Parallaxes include Stellar, Solar, Lunar, and Dynamic or Moving-Cluster Parallaxes.
Cited Source(s):
“Heliocentric Theory - The Copernican Revival Of The Heliocentric Theory, The Triumph Of The Heliocentric Theory, The Heliocentric Theory And The Universe.” Science Encyclopedia. 4 November 2009. http://science.jrank.org/pages/3278/Heliocentric-Theory.html
“Difference Between Geocentric and Heliocentric.” Universe Today.
4 November 2009. http://www.universetoday.com/guide-to-space/the-solar-system/difference-between-geocentric-and-heliocentric/
“Parallax - Wikipedia, the free encyclopedia.” Wikipedia, the free encyclopedia.
4 November 2009. http://en.wikipedia.org/wiki/Parallax
Geocentric Vs. Heliocentric
ReplyDeleteThe Differences: The two theories where both
very interesting and believed by many but they were different in many ways. One huge difference is that the Geocentric Theory was based on the Earth while the Heliocentric model was based on the Sun. While the Geocentric has about two orbits moving around it the Heliocentric has more than that inside and outside its mane circle/orbit. Also the Geocentric theory was believed in times when people had not explored the moon or been near the sun and couldn’t prove it.
Geocentric: The Geocentric model consists of the solar system having the earth in the middle of the system, not moving and everything around it rotating. In the medieval times and Ancient Greek, times people such as Aristotle and Ptolemy believed this and stood by their decision.When objects started falling toward earth and moving in motions that made it look like they rotated for some people that was proof enough.For many it was not, thus more researching was done and the Heliocentric model/theory was discovered.
Heliocentric: The word heliocentric originates from the word Helios which means sun. The Heliocentric theory is where the earth and planets and everything else revolve around the sun. This means that mercury, Venus, Earth, Mars, Jupiter, and Saturn all rotate around the Sun. In this theory the moon is the only one that has its own celestial plate and thus revolves around the Earth and Sun at once.
Epicycles: A circle that rolls around inside or outside of another circle, one that generates an epicycloids or hypocycloid.’
Bibliography: http://wordnetweb.princeton.edu/perl/webwn?s=epicycle
http://www.knowledgerush.com/kr/encyclopedia/Geocentric_model/
http://muse.tau.ac.il/museum/galileo/heliocentric.html
http://en.wikipedia.org/wiki/Heliocentrism
http://csep10.phys.utk.edu/astr161/lect/retrograde/copernican.html
Nah-Jae' Hickman.Red CLass
ReplyDeleteGeocentric Vs. Heliocentric
The Differences: The two theories where both very interesting and believed by many but they were different in many ways. One huge difference is that the Geocentric Theory was based on the Earth while the Heliocentric model was based on the Sun. While the Geocentric has about two orbits moving around it the Heliocentric has more than that inside and outside its mane circle/orbit. Also the Geocentric theory was believed in times when people had not explored the moon or been near the sun and couldn’t prove it.
Geocentric: The Geocentric model consists of the solar system having the earth in the middle of the system, not moving and everything around it rotating. In the medieval times and Ancient Greek, times people such as Aristotle and Ptolemy believed this and stood by their decision.When objects started falling toward earth and moving in motions that made it look like they rotated for some people that was proof enough.For many it was not, thus more researching was done and the Heliocentric model/theory was discovered.
Heliocentric: The word heliocentric originates from the word Helios which means sun. The Heliocentric theory is where the earth and planets and everything else revolve around the sun. This means that mercury, Venus, Earth, Mars, Jupiter, and Saturn all rotate around the Sun. In this theory the moon is the only one that has its own celestial plate and thus revolves around the Earth and Sun at once.
Epicycles: A circle that rolls around inside or outside of another circle, one that generates an epicycloids or hypocycloid.’
Bibliography: http://wordnetweb.princeton.edu/perl/webwn?s=epicycle
http://www.knowledgerush.com/kr/encyclopedia/Geocentric_model/
http://muse.tau.ac.il/museum/galileo/heliocentric.html
http://en.wikipedia.org/wiki/Heliocentrism
http://csep10.phys.utk.edu/astr161/lect/retrograde/copernican.html
Christopher Morrisett Red class
ReplyDelete1)What is the difference between the Geocentric model of our solar system? The Geocentric model explained the motions of the stars, suns, and but it did not explain the motion of the planets. The Heliocentric model the sun-centered to explain the motions of celestial objects in the Earth's sky. Earth noth rotates on an imaginary axis and revolves around the sun in an orbit.
2)How were the observed orbits of the planets(Mercury, Venus, Mars, Jupiter and Saturn) explained in the Geocentric model?In the Geocentric model the Earth neither rotates or revolves.The planets revolve in the small circle, while the centers of these circles revolve aound Earth in circular orbits.
3)How were the observed orbits of the planets explained in the Heliocentric model?In the Heliocentric model the sun is the center of motion. Earth and other planets rotate and revolve around the sun at different speeds in elliptical orbits with some eccentricity.
4)Explain one of the following terms and how it is related to this assignment: The ellipitical orbit relates to this assignment because the Heliocentric model believed that the planets orbited around the Sun.
My source is www.universetoday.com/guide-to-space/the-solarsystem
Ryan Valdez Green Class
ReplyDeleteThe fossil that I have choosen is Eurypterus Remipes. The species name is Sea Scorpion which is also what Eurypterus Remipes means. This fossil is found in New York state. The Eurypterus lived in the shallow parts of the ocean. The geologic periods that it lived in are the permian,pennsylvanian,and mississippian. the fossil first appeared between 410-420 million years ago. the fossil was extinct about 14,000-15,000 years ago.
Hey, It's James Canellos. The date is 11/9/09. My email address is moviedude041195@gmail.com and here are my answers to the fossil questions.
ReplyDelete1. The genus a.k.a the group the coelophysis fossil was under the dinosaur group. They are primitive Triassic jurassic ceratosaurs. The species of the coelophysis all were meat eaters. They were all fast because of their powerful hind legs. They grew up to 3 meters and weighed 45 kilograms. All had sharp teeth, and hollow and slender bones. The name, coelophysis means hollow form, because as I mentioned before it has very hollow bones
SOURCE: http://nmstatefossil.org/item/12 & 143
2. The fossils for coelophysis were found in Ghost Ranch in Rio Arriba County, New Mexico.
SOURCE:http://nmstatefossil.org/item/15
3. They lived in an environment in which river flooded plains dominated most of the land, also known as a swampy area.
SOURCE: http://nmstatefossil.org/item/10
4. The period the coelphysis lived in was over 205-210 million years ago, their fossils where found in Triassic rocks, which defined the age.
SOURCE: http://nmstatefossil.org/item/11
5. The fossil of the coelphysis where first found in New Mexico, in 1981, so 28 years ago.
SOURCE:http://nmstatefossil.org/item/9
6. It is unclear when or why the coelphysis died out
David Jean
ReplyDeleteBlue Class
November 11,2009
Fossil I have chosen-Mucrospirifer
1.Mucrospirifer are a genus of brachiopods with a long straight hinge line that extends to a point. This gives them a distinctive wing like appearance. The valves are biconvex and have a pronounced fold and sulcus.
Mucrospirifers used a pedicle to anchor themselves to the sea floor.
2.Mucrospirifers have been found in middle devonian rocks of Michigan, Ontario, and Ohio.
3.Mucrospirifers lived in brachiopod environment.
4.Mucrospirifers Geologic Period(s) are Ordovician Period,and Devonian Period.
5.Mucrospirifers first appear 490 million years ago.
6.206 to 144 Million Years Ago is when Mucrospirifers disappear from the fossil record.
Source-http://www.fossils-facts-and-finds.com/mucrospirifer.html,
http://www.britannica.com/EBchecked/topic/674802/Mucrospirifer
Krystal Dillon
ReplyDeleteBlue class
Fossil : eurypterus remipes
Eurypterus Remipes is tha new york state fossil. Eurpyterids are an extinct group of arthropods that were common during the Paleozoic Era. Some were, in fact, the largest arthropods ever known. Eurypterids are sometimes called "sea scorpions," but this isn’t accurate because the more closely resemble the horseshoe crabs. The meaning of Eurypterus Remipes is broad wings. This fossil was chosen as the new york state fossil in 1984. This fossil first appeared about 450 million years ago. It became extinct about 260 million years ago. Eurypterus Remipes are found all over the world, but they are rarely found, partly due to their thin, unmineralized exoskeleton (or "shell"). New York State is one of a small number of places in the world where eurypterids can be commonly found (even then, only in particular rock units). During the Silurian Age (over 400 million years ago), Eurypterus Remipes crawled along the bottom of the shallow, brackish sea that covered much of New York, extending from Buffalo to Schenectady and south to Poughkeepsie, roughly along the route of the New York Thruway.
New York State Fossil - Eurypterus Remipes “http://www.nysl.nysed.gov/emblems/fossil.htm. November 11th,2009
New York: Eurypterus remipes (state fossil) “http://www.statefossils.com/ny/ny.html. November 11th, 2009
Mika Allen RED CLASS
ReplyDeleteMammals started living 250 million years ago and are still living today.
ROANY MOLINA
ReplyDeleteRED CLASS
Fossil: Condor
History of the Condor :
Fossil records believe that the condor use to range from all over north america and that they once flew with Teratornis mettiami. Condors have lived ever since the prehistoric times.
1. The complete Genus of the Condor is monotypic genus. There species is the name of New World Vultures. The Condors names is for the largest flying birds in the western hemisphere.
2.The condor has been found in the high areas of the Andes and in the Rocky mountains of California.
3.The enviroment that the Condor lives in is mostly South America.
4. The Condor lived in the Plesistocene era , the Plesistocene era ended 10,000 years ago.
5. The Condor first appeared in the Ice age
6. The condor has still not been extinct but are on the in dangered species list.
Sources:
1. http://www.absoluteastronomy.com/topics/Condor
2.http://www.animaltrial.com/condorbird.html
3.http://www.sbcondors.com/sb-zoo-condors/faq/#1
4. http://www.sciencedaily.com/releases/2005/12/051227155401.htm
ROANY MOLINA
RED CLASS
Anna Romeo
ReplyDeletered class
fossil: coelophysis
1. The name means "hollow form." It is the combination of 2 Greek words, koilos(hollow) and phisis(form). Referring to the hollow bones of this meat-eating dinosaur. The coelophysis fossils fall under the genus group. They were all very fast runners because of the powerful hind legs. They had sharp teeth, slender bodies and hollow bones like all meat-eating dinosaurs.
2. The coelophysis fossil was found in New Mexico. "The New Mexico State Legislature designated Coelophysis the state fossil in 1981." It was foubnd in a fossil bone bed at Ghost Ranch in Rio Arriba County, New Mexico.
3. Coelophysis lived on the ground, walking or running on its two powerful hind legs.
4. Fossils of Coelophysis are found in New Mexico in rocks of Late Triassic age. These rocks are about 205 to 210 million years old.
5. This fossil was first found in New Mexico in the year 1981. About 28 years ago.
6. Paleontologists don't know what killed the Coelophysis. Some suggests that a flash flood, disease or poison swamp gas.
SOURCE: http://www.nmstatefossil.org/item/18
DATE: November 12, 2009
Iqra Gul
ReplyDeletered class
1. The bothriolepis is a fish that comes from the placoderm family and is said to be 387 million to 360 million years old the bothriolepis fish is known to have a wide box like shape. The genus that this ancient fish comes from is the remigolepis and the species that it comes from is the remigolepis walkeri .The name of the bothriolepis fish means pitted scale or trench scale.
http://www.devoniantimes.org/who/pages/placoderm.html
Devonian times-more about placoderms
Last updated: ored fish, bothrioepis canadeJuly 9, 2005
Dennis C. Murphy
2. This fossil has been found in Escumiac Bay, Miguasha, Quebec and Canada.
http://store.dinosaurcorporation.com/bothriolepis.html
prehistoric armored fish, bothrioepis canadensis
3.The bothriolepis fish was a bottem deweller so it lived in a lake or a river.
http://www.freerepublic.com/focus/news/1024292/posts
350 million-year-old fossil fopund in pa
4.The bothriolepis fish in the devonian Period about 420 million years ago and then became extinct about 360 million years ago.
http://www.enchantedlearning.com/subjects/dinosaurs/glossary/indexp3.shtml
paleontology and geology glossary: pi to po
5.The fossil first appered in 1913 while scientist were working. They found skull fragments.
http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=5429724
fossil fishes in the devonian rocks of north devon
cambridge university press
6.The bothriolepis fish lived about 420 million years ago and went extinct about 360 million years ago.
http://www.enchantedlearning.com/subjects/dinosaurs/glossary/indexp3.shtml
paleontology and geology glossary: pi to po
1. The difference is that Geographic models theory, was that the Earth is the center of the solar system. Heliocenteric models theory was that the sun is the center of the sun.
ReplyDelete2. Mercury, Mars, Venus, Jupiter and Saturn were all visible from Earth. For example Venus seemed to stay the same distance from Earth based on its uncharged brightness.
3. In Nichloaus Corpernicus' book, showed that a new system called modem ordering had the planets all lined up and facing the sun.
4. The Celestial sphere was a coordinate system made to find position of the sun, moon and any other planets and it can also become very helpful for the Geocentric Model.
Fossil: Lichenaria
ReplyDelete1.What is its complete genus and species and what does its name mean?
2. Where in the world has this fossil been found?
North America
3.What kind of environment did it live in?
An environment with insects, land plants, animals, and abundant eurypterids.
4.In which Geologic Period(s) did it live?
Ordovician period
5.How many years ago did this fossil first appear?
About 480 million years ago
6.How many years ago did this fossil disappear from the fossil record (go extinct)?
About 485 million years ago
--Trinity Griffin
Red class
November 12, 2009
QHST
shawnett austin red class .
ReplyDelete1.A condor fossil is a very large vulture related too the condor of south america found in the southern California mountains and nearly extinct. the condor genus is gymnogyps.
Its species are G.californianus .
2. this fossil was found in california.
3. The environment the condor fossil lives in is an evironment with humans,mastodants,and mammoths .
4.The geological period for the condor fossil is Quaternary.
5. 0.01 million years ago
6. extinct 1.8 million years ago
Eurypterus is the New York State's fossil and one of the extinct group of athropods and the one of the largest fossils to ever have the name "sea scorpion." The Eurypterus was around 450 million years ago then it has extinct 260 million years ago and they are around the world, but they are hardly found to their thin, unmineralized exoskeleton(or "shell").
ReplyDeleteUnfortunately, the above post (from newking9306) for the geo/heliocentric models, is a reminder to all students - late entries for on-line assignments do not receive credit, especially when the sender does not follow instructions and leave their name.
ReplyDelete