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2012 October 28 | cymVolon

Archive for October 28th, 2012

Dwarf-Planet (Ceres)

Asteroid belt: Ceres

Ceres, formally 1 Ceres, is the only dwarf planet in the inner Solar System, and the largest asteroid. It is a rock–ice body 950 km (590 mi) in diameter, and though the smallest identified dwarf planet, it constitutes a third of the mass of the asteroid belt. Discovered on 1 January 1801 by Giuseppe Piazzi, [...]

Astronomy

Solar System: Dwarf planets

A dwarf planet, as defined by the International Astronomical Union (IAU), is a celestial body in direct orbit of the Sun that is massive enough that its shape is controlled by gravitational forces rather than mechanical forces (and is thus an ellipsoid), but has not cleared the neighboring region of other objects. More explicitly, it [...]

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