Earth Sciences 1086F/G Lecture Notes - Scattered Disc, Percival Lowell, Hubble Space Telescope
22 Apr 2014
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Definitions and locations: pluto is dwarf planet now because too similar to other discoveries. Iau made this: means pluto-like trans-neptunian dwarf planets, small solar system bodies (sssb) Use trans-neptunian object (tno: any size thing that orbits sun far away. Looked for shit past neptune, didn"t find anything. Tombaugh continued his work: blink comparator look through microscope comparing 2 slides of different time frames for any movement, found pluto march 13, 1930 2 mins of 4pm mst. Planet facts: most comes from hubble space telescope, really elliptical orbit, 3 satellites: charon is biggest, every 248 years, pluto gets closer than neptune to uranus and sun, interior structure. Frozen nitrogen, water ice, silicate rock: surface is nitrogen ice, methane, co and maybe water ice. Gravitational point not pluto, but somewhere between the two. Waiting for new horizons to make some observations. Eris: largest, inner section of kuiper belt scattered disc, huge elliptical path, grey surface with organic matter.
