Talk:136199 Eris
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[edit] Accurate Size
If Eris is bigger then Mercury it isn't a dwarf planet, because Mercury itself is a pure planet. --ยง Alastor Moody (T + C) 06:14, 20 September 2006 (UTC)
- The classification as a dwarf planet is not only based on size (The following is from en:Definition of planet):
The IAU therefore resolves that planets and other bodies in our Solar System, except satellites, be defined into three distinct categories in the following way: . (1) A "planet"1 is a celestial body that: (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit. . (2) A "dwarf planet" is a celestial body that: (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape2, (c) has not cleared the neighbourhood around its orbit, and (d) is not a satellite. . (3) All other objects3 except satellites orbiting the Sun shall be referred to collectively as "Small Solar System Bodies". . Footnotes: . 1 The eight planets are: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. 2 An IAU process will be established to assign borderline objects into either "dwarf planet" and other categories. 3 These currently include most of the Solar System asteroids, most Trans-Neptunian Objects (TNOs), comets, and other small bodies. . The IAU further resolves: . Pluto is a "dwarf planet" by the above definition and is recognized as the prototype of a new category of trans-Neptunian objects.
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- Eris is not bigger than Mercury. Eris is slightly bigger as Pluto, but Mercury is about twice as big. RaNdOm26 10:48, 1 December 2006 (UTC)
[edit] Simplify
Just interested to simplify this article. What ways can I make it simpler now? RaNdOm26 10:46, 1 December 2006 (UTC)
- IMHO, it reads a bit too scientific, too like a normal Wikipedia article - some of the terms need to be clarified, or at least linked. I'll try and work on it a bit myself. Berek 16:35, 1 December 2006 (UTC)
[edit] Merger
It looks like it should definitely be merged. All it needs is someone bold enough to do so. I would do it myself but astronomy is not my strong subject, so I am likely to introduce errors in the process. Once the text is merged and a summary is given simply redirect the other page to this one via
#REDIRECT [[2003 UB313 (dwarf planet)]]
with the "pre" tags removed. Ksbrowntalk 18:15, 6 February 2007 (UTC)
- Hello, I just merged 2003 UB313 (dwarf planet) to here. There's not a lot of info in that article that's worthy though - some of it was out of date (eg. it said the object was about to receive a name..... today, it already has a name). RaNdOm26 17:50, 8 February 2007 (UTC)