57 Mnemosyne
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Orbital characteristics 1 | |
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Orbit type | Main belt |
Semimajor axis | 3.150 AU |
Perihelion distance | 2.776 AU |
Aphelion distance | 3.523 AU |
Orbital period | 5.59 years |
Inclination | 15.20° |
Eccentricity | 0.119 |
Physical characteristics 1 | |
Diameter | 112.6 km |
Rotation period 3 | 12.463 hours |
Spectral class | S |
Abs. magnitude | 7.03 |
Albedo 4 | 0.215 |
History 2 | |
Discoverer | R. Luther, 1859 |
57 Mnemosyne (ni-mos'-i-nee) is a large Main belt asteroid. It is a S-type asteroid.
It was discovered by R. Luther on September 22, 1859. It is named after Mnemosyne, a Titaness in Greek mythology.
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Vulcanoids | Near-Earth asteroids | Main belt | Jupiter Trojans | Centaurs | Damocloids | Comets | Trans-Neptunians (Kuiper belt · Scattered disc · Oort cloud) |
For other objects and regions, see: asteroid groups and families, binary asteroids, asteroid moons and the Solar system For a complete listing, see: List of asteroids. See also Pronunciation of asteroid names and Meanings of asteroid names. |