(2256) Wiśniewski
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Asteroid (2256) Wiśniewski |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Asteroid family | Themis family |
| Major semi-axis | 3.0903 AU |
| eccentricity | 0.1749 |
| Perihelion - aphelion | 2.5498 AU - 3.6308 AU |
| Inclination of the orbit plane | 0.464 ° |
| Sidereal period | 5,431 a |
| Mean orbital velocity | 16.94 km / s |
| Physical Properties | |
| Medium diameter | approx. 17 km |
| Albedo | ? |
| Rotation period | ? H |
| Absolute brightness | 12.1 mag |
| Spectral class | ? |
| history | |
| Explorer | CJ and I. van Houten-Groeneveld , T. Gehrels |
| Date of discovery | September 24, 1960 |
| Another name | 4519 PL, 1949 SU 1 , 1965 OH |
| 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. | |
(2256) Wiśniewski is an asteroid of the main belt that was discovered on September 24, 1960 by the Dutch research team Cornelis Johannes van Houten , Ingrid van Houten-Groeneveld and Tom Gehrels as part of the Palomar-Leiden survey .
The asteroid is named after the Polish astronomer Wiesław Z. Wiśnewski .