Ceres, with a diameter of approximately 940 km, is the largest known object in the asteroid belt between Mars and Jupiter — first discovered in 1801 and originally classified as a planet, then an asteroid, and since 2006 reclassified as a dwarf planet, though it remains by far the largest body in the asteroid belt regardless of category.
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Ceres, with a diameter of approximately 940 km, is the largest known object in the asteroid belt between Mars and Jupiter — first discovered in 1801 and originally classified as a planet, then an asteroid, and since 2006 reclassified as a dwarf planet, though it remains by far the largest body in the asteroid belt regardless of category.
The greatest diameter of any known object in the asteroid belt, whether classified as an asteroid or dwarf planet.
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Permanent ID limitsregistry.com/limits/LR-LARGEST-KNOWN-ASTEROID
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Limits Registry. LR-LARGEST-KNOWN-ASTEROID. Largest known asteroid. 2026.