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125 Liberatrix - Simple English Wikipedia, the free encyclopedia

125 Liberatrix

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125 Liberatrix
Discovery
Discovered by: Paul Henry and Prosper Henry
Discovery date: September 11, 1872
Orbital characteristics
Epoch December 31, 2006 (JD 2454100.5)
Aphelion 443.561 Gm (2.965 AU)
Perihelion: 376.865 Gm (2.519 AU)
Semi-major axis: 410.213 Gm (2.742 AU)
Eccentricity: 0.081
Orbital period: 1658.534 d (4.54 a)
Avg. orbital speed: 17.96 km/s
Mean anomaly: 267.835°
Inclination: 4.656°
Longitude of ascending node: 169.160°
Argument of perihelion: 110.210°
Physical characteristics
Dimensions: 43.6 km
Mass: 8.7×1016 kg
Mean density: 2.0 g/cm³
Equatorial surface gravity: 0.0122 m/s²
Escape velocity: 0.0231 km/s
Rotation period: ? d
Albedo: 0.10
Temperature: ~168 K
Spectral type: M
Absolute magnitude: 9.04

125 Liberatrix is a Main belt asteroid. It has a fairly reflective surface and an M-type spectrum. Liberatrix is a member of an asteroid family having its own name. It was found by Prosper Henry on September 11, 1872. It was the first asteroid he found. He and his brother Paul Henry found a total of 14 asteroids. The asteroid's name is believed to mark the liberation of France at the collapse of the Second French Empire in 1870. There are so far two seen occultations by Liberatrix. The lightcurve of the asteroid has a big amplitude, indicating a stretched or non-spherical shape.

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