HONS 159 Lecture Notes - Lecture 7: Kuiper Belt, Oort Cloud, Earth Radius
Document Summary
The cosmic perspective ch 7 - our planetary system. All orbiting in the same direction and plane. Comparative planetology is the system of comparing objects in space to understand what processes/effects occur on each and how that affects the final product, ex. Mostly made up of h & he gas. Energy comes from nuclear fusion in the core. Mass ~ 0. 055 me (me - mass of earth, ~ = approximately) Radius ~ 0. 4 re (re - radius of earth) Mostly made up of metal (iron), rock (silicon) Mostly made up of metal and rock. 470 degrees celsius day and night bc of extreme greenhouse effect. Mostly made up of metal, rock, and liquid water. Temp range from -50 degrees c to +50 degrees c. Large moon, no other small planet has this. Mostly made up of metal and rock, possibly had liquid water in the past. 4 galilean moons - io, europa, ganymede, callisto.
