134 Sophrosyne

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134 Sophrosyne
Orbital characteristics 1
Orbit type Main belt
Semimajor axis 2.564 AU
Perihelion distance 2.264 AU
Aphelion distance 2.864 AU
Orbital period 4.10 years
Inclination 11.59°
Eccentricity 0.117
Physical characteristics 1
Diameter 123.3 km
Rotation period 17.196 hours
Spectral class C
Abs. magnitude 8.76
Albedo 4 0.036
History 2
Discoverer R. Luther, 1873

134 Sophrosyne is a large main belt asteroid. It has an exceedingly dark surface and most likely a primitive carbonaceous composition.

It was discovered by Robert Luther on September 27, 1873, and is named after the concept of sophrosyne, Plato's term for 'moderation'.


Minor planets
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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.