(57) Mnemosyne
Asteroid (57) Mnemosyne |
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Properties of the orbit ( animation ) | |
Orbit type | Outer main belt |
Major semi-axis | 3.155 AU |
eccentricity | 0.117 |
Perihelion - aphelion | 2.786 AU - 3.524 AU |
Inclination of the orbit plane | 15.2 ° |
Length of the ascending node | 199.2 ° |
Argument of the periapsis | 211.2 ° |
Time of passage of the perihelion | 4th July 2011 |
Sidereal period | 5 a 221 d |
Mean orbital velocity | 16.7 km / s |
Physical Properties | |
Medium diameter | 113 km |
Albedo | 0.2149 |
Rotation period | 12 h 28 min |
Absolute brightness | 7.03 mag |
Spectral class | S. |
history | |
Explorer | KTR Luther |
Date of discovery | September 22, 1859 |
Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. |
(57) Mnemosyne is an asteroid that was discovered on September 22, 1859 by the German astronomer Karl Theodor Robert Luther .
It was named after Mnemosyne , the Greek mythology after the daughter of Uranus and Gaia .
See also
- List of asteroids with references and web links (see also infobox)