(1521) Seinajoki
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Asteroid (1521) Seinäjoki |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Asteroid family | Brasilia family |
| Major semi-axis | 2.8489 AU |
| eccentricity | 0.1406 |
| Perihelion - aphelion | 2.4483 AU - 3.2496 AU |
| Inclination of the orbit plane | 15.056 ° |
| Sidereal period | 4,809 a |
| Mean orbital velocity | 17.65 km / s |
| Physical Properties | |
| Medium diameter | approx. 15 km |
| Albedo | ? |
| Rotation period | 4.32 h |
| Absolute brightness | 11.8 mag |
| Spectral class | ? |
| history | |
| Explorer | Yrjö Väisälä |
| Date of discovery | October 22, 1938 |
| Another name | 1938 UB 1 , 1933 UR 1 1967 UW |
| 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. | |
(1521) Seinäjoki is an asteroid of the main belt , which on 22 October 1938 by the Finnish astronomer Yrjö Väisälä at Turku was discovered.
The asteroid is named after the Finnish city of Seinäjoki .