(1311) Knopfia
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Asteroid (1311) Knopfia |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.4264 AU |
| eccentricity | 0.0452 |
| Perihelion - aphelion | 2.3167 AU - 2.5361 AU |
| Inclination of the orbit plane | 2.828 ° |
| Sidereal period | 3,780 a |
| Mean orbital velocity | 19.12 km / s |
| Physical Properties | |
| Medium diameter | 14.06 km |
| Dimensions | ? kg |
| Albedo | 0.118 |
| Medium density | ? g / cm³ |
| Rotation period | ? H |
| Absolute brightness | 12,253 likes |
| Spectral class | ? |
| history | |
| Explorer | K. Reinmuth |
| Date of discovery | 1933 |
| Another name | 1933 FF 1 , 1929 CG 1 , 1976 SD |
| 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. | |
(1311) Knopfia is an asteroid of the main belt that was discovered on March 24, 1933 by the German astronomer Karl Wilhelm Reinmuth in Heidelberg .
The asteroid is named after the Jena astronomer Otto Knopf .