(2021) Poincaré
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Asteroid (2021) Poincaré |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2,3100 AU |
| eccentricity | 0.2198 |
| Perihelion - aphelion | 1.8022 AU - 2.8178 AU |
| Inclination of the orbit plane | 5.488 ° |
| Sidereal period | 3.511 a |
| Mean orbital velocity | 19.60 km / s |
| Physical Properties | |
| Medium diameter | approx. 5.0 km |
| Albedo | ? |
| Rotation period | ? H |
| Absolute brightness | 13.4 mag |
| Spectral class | ? |
| history | |
| Explorer | Louis Boyer |
| Date of discovery | 1936 |
| Another name | 1936 MA, 1968 UQ 2 , 1971 LE |
| 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. | |
(2021) Poincaré is an asteroid of the main belt , which on 26 June 1936 by the French astronomer Louis Boyer in Algiers was discovered.
The asteroid was named after the French mathematician Henri Poincaré .