(1446) Sillanpää
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Asteroid (1446) Sillanpää |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.2456 AU |
| eccentricity | 0.1010 |
| Perihelion - aphelion | 2.0187 AU - 2.4724 AU |
| Inclination of the orbit plane | 5.257 ° |
| Sidereal period | 3,365 a |
| Mean orbital velocity | 19.88 km / s |
| Physical Properties | |
| Medium diameter | ? km |
| Albedo | ? |
| Rotation period | ? H |
| Absolute brightness | 12.6 mag |
| Spectral class | ? |
| history | |
| Explorer | Yrjö Väisälä |
| Date of discovery | January 26, 1938 |
| Another name | 1938 BA, 1935 GB, 1952 HQ 3 |
| 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. | |
(1446) Sillanpää is an asteroid of the main belt that was discovered in Turku on January 26, 1938 by the Finnish astronomer Yrjö Väisälä .
The name of the asteroid is reminiscent of the Finnish writer and Nobel Prize winner Frans Eemil Sillanpää .