(1012) Sarema
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Asteroid (1012) Sarema |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.4805 AU |
| eccentricity | 0.1337 |
| Perihelion - aphelion | 2.1489 AU - 2.8121 AU |
| Inclination of the orbit plane | 4.037 ° |
| Sidereal period | 3 a 330 d |
| Mean orbital velocity | 18.91 km / s |
| Physical Properties | |
| Medium diameter | 21.12 km |
| Albedo | 0.430 |
| Rotation period | 10.32 h |
| Absolute brightness | 12,392 likes |
| Spectral class | F. |
| history | |
| Explorer | KW Reinmuth |
| Date of discovery | January 12, 1924 |
| Another name | 1924 PM, 1954 XL, 1954 YF |
| 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. | |
(1012) Sarema is an asteroid of the main belt that was discovered on January 12, 1924 by the German astronomer Karl Wilhelm Reinmuth , who worked at the observatory on the Königstuhl near Heidelberg .
The asteroid bears the name of a character from a poem by Alexander Sergejewitsch Pushkin , which also served as a template for an opera .
Its orbit has a semi-major axis of 2.4805 and an orbital eccentricity of 0.1337. Thus it moves at a distance of 2.1489 ( perihelion ) to 2.8121 ( aphelion ) astronomical units in 3.907 a around the sun . The orbit is 4.037 ° inclined to the ecliptic .
The asteroid has a diameter of 21.12 km and an albedo of 0.430. It rotates once around its own axis in about 10.32 hours.