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Ahuna Mons [2] (/ ə ˈ h uː n ə ˈ m ɒ n z /) is the largest mountain on the dwarf planet and asteroid Ceres.It protrudes above the cratered terrain, is not an impact feature, and is the only mountain of its kind on Ceres.
The second resolution, 5B, defined dwarf planets as a subtype of planet, as Stern had originally intended, distinguished from the other eight that were to be called "classical planets". Under this arrangement, the twelve planets of the rejected proposal were to be preserved in a distinction between eight classical planets and four dwarf planets.
The bodies included in this table are: (1) planemos; (2) major planets, dwarf planets, or moons of major or dwarf planets, or stars; (3) hydrostatically round so as to be able to provide a geodetic datum line.
The number of dwarf planets in the Solar System is unknown. Estimates have run as high as 200 in the Kuiper belt [1] and over 10,000 in the region beyond. [2] However, consideration of the surprisingly low densities of many large trans-Neptunian objects, as well as spectroscopic analysis of their surfaces, suggests that the number of dwarf planets may be much lower, perhaps only nine among ...
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First discovered with giant planet(s) Gliese 876: 1998 Gliese 876 b: The giant planet was the first planet discovered around a red dwarf. [2] [3] First discovered with terrestrial planet(s) Kepler-42 : 2012 KOI-961 b KOI-961 c KOI-961 d: 3 terrestrial planets were discovered around KOI-961 in 2012, the first terrestrial planets found to orbit a ...
A small Solar System body (SSSB) is an object in the Solar System that is neither a planet, a dwarf planet, nor a natural satellite. The term was first defined in 2006 by the International Astronomical Union (IAU) as follows: "All other objects, except satellites, orbiting the Sun shall be referred to collectively as 'Small Solar System Bodies ...
For example, it is only 28% the size of Earth's Moon and 41% that of Pluto, another dwarf planet. It is comparable in size to Saturn's moons Tethys and Dione. Ceres' small size means that it cooled much faster than full-sized planets and larger moons, limiting its degree of thermal evolution. [7]