ASTR 101 Lecture Notes - Lecture 7: Oort Cloud, Kuiper Belt, Formation And Evolution Of The Solar System
Document Summary
Asteroids are most concerning because many of them have orbits that lie relatively close to the earth. The majority are found in the asteroid belt between the orbits of mars and. Jupiter: some o(cid:306) these asteroids do (cid:268)ross the earth"s or(cid:267)it. Asteroids in asteroid belt are quite small with an exception of ceres. These (cid:616)in-(cid:267)et(cid:453)een(cid:617) (cid:453)orlds ha(cid:452)e man(cid:459) similarities to (cid:268)omets and asteroids, but were big. The machine is designed to identify big planets that are close to its star. E(cid:452)iden(cid:268)e (cid:306)rom (cid:267)oth (cid:616)(cid:453)o(cid:267)(cid:267)le(cid:617) and transit methods su(cid:307)(cid:307)est that planetary systems form around most stars, in flattened, orderly rotating, gravitationally interacting disks of gas and dust. Kepler-186f = similar to earth: the placement of it to its sun is in a area where water could exist. Proxima centauri (closest star to the sun) has an earth-sized planet warm enough for liquid water: proxima b.
