(2269) Efremiana
Asteroid (2269) Efremiana |
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Properties of the orbit ( animation ) | |
Orbit type | Main belt asteroid |
Major semi-axis | 3.1258 AU |
eccentricity | 0.0855 |
Perihelion - aphelion | 2.8586 AU - 3.3930 AU |
Inclination of the orbit plane | 15.3823 ° |
Sidereal period | 5.53 y |
Physical Properties | |
Medium diameter | 22.92 km (± 1.6) |
Albedo | 0.2123 |
Rotation period | ? |
Absolute brightness | 11.0 mag |
history | |
Explorer | Nikolai Stepanowitsch Tschernych |
Date of discovery | May 2, 1976 |
Another name | 1976 YES2 |
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. |
(2269) Efremiana is an asteroid of the main belt . It was discovered on May 2, 1976 by Nikolai Stepanowitsch Tschernych at the Crimean Observatory and named after the Russian-Soviet paleontologist and science fiction author Ivan Antonovich Yefremov .