AST201H1 Lecture Notes - Lecture 5: Galactic Center, Hubble Ultra-Deep Field, Small Solar System Body

• School: UTSG
• Department: Astronomy & Astrophysics
• Course: AST201H1
• Professor: Michael Reid

Document Summary

Hubble extremely deep field is the deepest image of a small area of space photo was produced by combing 10 yrs of nasa hubble space. Telescope photographs taken of a patch of sky at the center of the original hubble ultra deep field reveals the most distant galaxies ever taken allows us to explore further back in time than ever before. Fritz zwicky (1898-1974) swiss astronomer who was the first to infer dark matter. The closer you are to the center of the galaxy, the higher orbit speed. The galaxy is an enormous spherical halo of unseen dark matter that comprises most of the galaxy"s mass. Our sun is one of more than 100 billion stars in the milky way galaxy. Our galaxy is one of about 40 galaxies in the local group. The local group is one small part of the local supercluster, which is one small part of the universe.