(1495) Helsinki
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Asteroid (1495) Helsinki |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Asteroid family | Eunomia family |
| Major semi-axis | 2.6389 AU |
| eccentricity | 0.1527 |
| Perihelion - aphelion | 2.2359 AU - 3.042 AU |
| Inclination of the orbit plane | 12.754 ° |
| Sidereal period | 4,287 a |
| Mean orbital velocity | 18.33 km / s |
| Physical Properties | |
| Medium diameter | 18.37 km |
| Albedo | 0.120 |
| Rotation period | ? H |
| Absolute brightness | 11,391 mag |
| Spectral class | ? |
| history | |
| Explorer | Yrjö Väisälä |
| Date of discovery | September 21, 1938 |
| Another name | 1938 SW |
| 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. | |
(1495) Helsinki is an asteroid of the main belt , which on 21 September 1938 by the Finnish astronomer Yrjö Väisälä at Turku was discovered.
The name of the asteroid is derived from the Finnish capital Helsinki .