(2972) Niilo
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Asteroid (2972) Niilo |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.1508 AU |
| eccentricity | 0.1697 |
| Perihelion - aphelion | 1.7858 AU - 2.5158 AU |
| Inclination of the orbit plane | 1.0941 ° |
| Sidereal period | 3,154 a |
| Mean orbital velocity | 20.31 km / s |
| Physical Properties | |
| Medium diameter | ? km |
| Albedo | ? |
| Rotation period | ? H |
| Absolute brightness | 13.5 likes |
| Spectral class | ? |
| history | |
| Explorer | Yrjö Väisälä |
| Date of discovery | October 7, 1939 |
| Another name | 1939 TB, 1955 XL, 1964 PK |
| 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. | |
(2972) Niilo is an asteroid of the main belt , which on 7 October 1939 by the Finnish astronomer Yrjö Väisälä at Turku was discovered.
The name of the asteroid is reminiscent of the Finnish writer Niilo Lauttamus .