(1524) Joensuu
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Asteroid (1524) Joensuu |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 3.1106 AU |
| eccentricity | 0.1204 |
| Perihelion - aphelion | 2.736 AU - 3.4851 AU |
| Inclination of the orbit plane | 12.7 ° |
| Sidereal period | 5,486 a |
| Mean orbital velocity | 16.89 km / s |
| Physical Properties | |
| Medium diameter | 42.79 km |
| Albedo | 0.046 |
| Rotation period | 9.276 h |
| Absolute brightness | 10,622 likes |
| Spectral class | ? |
| history | |
| Explorer | Yrjö Väisälä |
| Date of discovery | September 18, 1939 |
| Another name | 1939 SB, 1931 EL, 1933 QO |
| 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. | |
(1524) Joensuu is an asteroid of the main belt , which on 18 September 1939 by the Finnish astronomer Yrjö Väisälä at Turku was discovered.
The asteroid was named after the Finnish city of Joensuu .