AST101H1 Lecture Notes - Lecture 3: Solar System, Mariner 10, Oort Cloud

• School: UTSG
• Department: Astronomy & Astrophysics
• Course: AST101H1
• Professor: Bryan Gaensler

Document Summary

Ast 101 lecture 3 our solar system. A solar system consists of a star orbited by planets, moons, and lots of debris (comets, asteroids and dust). Note: if the word olar yste(cid:373) is (cid:272)apitalized it (cid:373)ea(cid:374)s earth"s solar syste(cid:373), (cid:862)solar syste(cid:373)(cid:863) or (cid:862)star syste(cid:373)(cid:863) (cid:272)a(cid:374) (cid:271)e a(cid:374)y su(cid:272)h syste(cid:373) The inner solar system: mercury, venus, earth, and mars. The outer solar system: jupiter, saturn, uranus, neptune, many dwarf planets & comets. Terrestrial planets are small, rocky, thin or no atmosphere, few moons, made of heavy elements. Jovian planets are large, liquid + gas, small rocky core, many moons, made of light elements. Jovian planets contain high amounts of gas pressure, they would crush anything that attempts to land on their surface. The jovian planets are saturn, jupiter, neptune, uranus. Juno was launched by nasa in 2011 and arrived on jupiter on july 5, 2016. Neptunian object: the kuniper belt is a ring of comets orbiting just beyond neptune.