(917) Lyka
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Asteroid (917) Lyka |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.3808 AU |
| eccentricity | 0.2021 |
| Perihelion - aphelion | 1.8996 AU - 2.862 AU |
| Inclination of the orbit plane | 5.142 ° |
| Sidereal period | 3,674 a |
| Mean orbital velocity | 19.30 km / s |
| Physical Properties | |
| Medium diameter | 28.10 km |
| Albedo | 0.089 |
| Rotation period | 7,920 h |
| Absolute brightness | 11.42 mag |
| Spectral class | ? |
| history | |
| Explorer | Grigori Neujmin |
| Date of discovery | 1915 |
| Another name | 1915 S4, 1950 BS, 1951 JJ |
| 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. | |
(917) Lyka is a asteroid of the main belt , which on September 5, 1915 by the Russian astronomer Grigori N. Neujmin was discovered.
The asteroid is named after a friend of the explorer's sister.