(981) Martina
Asteroid (981) Martina |
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Properties of the orbit ( animation ) | |
Orbit type | Main belt asteroid |
Asteroid family | Themis family |
Major semi-axis | 3.0949 AU |
eccentricity | 0.2039 |
Perihelion - aphelion | 2.4638 AU - 3.7261 AU |
Inclination of the orbit plane | 2.066 ° |
Sidereal period | 5.445 a |
Mean orbital velocity | 16.93 km / s |
Physical Properties | |
Medium diameter | 28.88 km |
Albedo | 0.125 |
Rotation period | ? H |
Absolute brightness | 10,856 likes |
Spectral class | ? |
history | |
Explorer | SI Beljawski |
Date of discovery | 1917 |
Another name | 1917 S92, 1959 GF, 1969 QA |
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. |
(981) Martina is an asteroid of the main belt , which was discovered on September 23, 1917 by the Russian astronomer Sergei Ivanovich Beljawski at the Crimean Observatory in Simejis .
The asteroid was named after the French revolutionary Henri Martin .