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AST101H1 Lecture Notes - Dwarf Planet, Nuclear Fission

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ivorymacaw799
19 Nov 2012
School
UTSG
Department
Astronomy & Astrophysics
Course
AST101H1
Professor
Michael Reid

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AST101H1 Full Course Notes
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AST101H1 Full Course Notes
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Document Summary

The totality of all space, time, energy, and matter. However big you imagine the universe to be, you are wrong. Which of the following is the largest: jupiter, the earth, the sun , the moon, mercury. In pictures, the distances of the planets are not to scale. The solar system is huge and the vast majority of it is empty. A light year is a measure of distance. If a light year is a unit of distance so must be a light minute. If the distance between the sun and the center of the galaxy (black. Hole) is 26,000 light years, this means that: It would take light 26,000 years to get from the center of the galaxy to us. It"s the nearest large galaxy in the milky way. Let"s say a certain kind of star lives for 1 million year. You see such a star about 10 million ly away.

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Related Questions

Which, if any, of the following statements is/are true?

1)Our galaxy, The Milky Way, is a member of The Local Group, whichis one of several groups of galaxies located in the VirgoSupercluster.
2)Most astrophysicists believe that our Solar System formed from animmense cloud of gas and dust about 4-1/2 million years ago.
3)Planets are believed to have formed by a process known asaccretion.
4)Two key elements in the Condensation Theory of PlanetaryFormation are 5)Conservation of Angular Momentum and CondensationNuclei.
6)The name of the second largest object in the Universe is TheSouthern Wall.
7)In our Solar System, the four jovian planets, Jupiter, Saturn,Uranus, and Neptune, are separated from the four terrestrialplanets, Mercury, Venus, Earth, and Mars, by the Kuiper Belt.
8)Our star, The Sun, is located on the Orion Arm, about 26,000light-years from the center of the Andromeda Galaxy.
9)It takes a photon of light about 4-1/5 years to travel from ourSolar System to the second closest star to Earth, ProximaCentauri.
10)The full range of human knowledge about our Universe spans about40 or 41 orders of magnitude on a spatial scale and about 13.7billion years on a temporal scale.
11)It takes a photon of light about 5-1/2 hours to travel from theSun to the orbit of the former planet Pluto.