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AST201H1 Lecture 1: AST201 Week 1

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25 Aug 2016

School

Department

Astronomy & Astrophysics

Course

Professor

Marija Stankovic

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AST201H1 Full Course Notes

AST201H1 Full Course Notes

Document Summary

We live in the milky way galaxy but it is not the universe because the universe contains trillions of other galaxies. Everything in the universe is grouped together by a universal force of gravity. Local super clusters can contains thousands of smaller galaxies. Light takes 8 minutes to come from the sun to the earth unit of light years. The further away the object is, the more we see it further back in time/ when the universe was younger. Matter is energy and energy is matter. Most of the mass in the milky way is in the center. Stars, galaxies, planets, gas, dust, comets, asteroids, moons, meteorites. Studied clusters of galaxies, wanted to figure out how galaxies are moving within clusters, how clusters move, and how they move together. Tried to estimate how much matter would have to be in the stars to produce light.

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Related Questions

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