(642) Clara
Asteroid (642) Clara |
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Properties of the orbit ( animation ) | |
Orbit type | Main belt asteroid |
Major semi-axis | 3.19 AU |
eccentricity | 0.121 |
Perihelion - aphelion | 2.803 AU - 3.577 AU |
Inclination of the orbit plane | 8.2 ° |
Length of the ascending node | 5.9 ° |
Argument of the periapsis | 117.4 ° |
Time of passage of the perihelion | September 14, 2011 |
Sidereal period | 5 a 255 d |
Mean orbital velocity | 16.6 km / s |
Physical Properties | |
Medium diameter | (33.4 ± 1.5) km |
Albedo | 0.16 |
Rotation period | 8 h 14 min |
Absolute brightness | 10.0 mag |
Spectral class | S. |
history | |
Explorer | Max Wolf |
Date of discovery | September 8, 1907 |
Another name | 1907 ZY |
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. |
(642) Clara is an asteroid of the main belt that was discovered on September 8, 1907 by the German astronomer Max Wolf in Heidelberg .
The asteroid was named after one of the discoverer's housekeepers.