Earth Sciences 1086F/G Lecture Notes - Lecture 6: Lowell Observatory, Tombaugh Regio, Hubble Space Telescope

• School: Western University
• Department: Earth Sciences
• Course: Earth Sciences 1086F/G
• Professor: Elizabeth Webb

Document Summary

10: trans-neptunian objects (tnos): any sized objects in the solar system beyond the orbit of neptune, e. g. Definitions and locations: pluto demoted from proper" planet to dwarf planet status in 2006. 2017-12-04: too many new objects almost identical to pluto were being discovered, eventually would end up with ~50 planets, other dwarf planets include: ceres (in asteroid belt), eris, makemake, and haumea (in. Iau also introduced plutoids pluto-like trans-neptunian dwarf planets : only classified plutoids currently are pluto, eris, makemake, and haumea, small solar system bodies (sssbs) also exist, but tell us nothing about their location. New horizons: first spacecraft to reach pluto, currently on its way to kuiper belt. 2017-12-04: given the tiny size of pluto, astronomers realized that it could not have a measurable impact on the movements of neptune, therefore, the prediction" of pluto"s location based on measurements of. Neptune"s irregular movements was an absolute feat of luck.