Ceres

http://astrothesaurus.org/uat/219

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(1) Ceres
1 Ceres
Asteroid Ceres
dcterms modified equal to or less than 2020-12-03T17:43:01.210Zequal to or more than 2020-12-03T17:43:01.210Z
broader
http://astrothesaurus.org/uat/419 original
narrower
219 original
definition Once qualified as the largest known asteroid, Ceres is now classified as a dwarf planet (2006 IAU General Assembly). It is approximately 950 km across, and resides with tens of thousands of asteroids in the main asteroid belt; it is the largest body of the belt. Its mass is 9.4 x 10^20 kg, its rotation period 9.074 hours, its orbital period 4.60 years, and its semi-major axis 2.767 AU. NASA's Dawn spacecraft, which was placed in orbit around Ceres in 2015, has mapped its surface in great detail. Dawn discovered very bright spots, which reflect far more light than their much darker surroundings. The most prominent of these spots lie inside the crater Occator and suggest that Ceres may be a much more active world than most of its asteroid neighbors.
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contributor AAS_Frey.Katie_Admin original