(1155) Aënna
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Asteroid (1155) Aënna |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.4648 AU |
| eccentricity | 0.1631 |
| Perihelion - aphelion | 2.0628 AU - 2.8668 AU |
| Inclination of the orbit plane | 6.596 ° |
| Sidereal period | 3,870 a |
| Mean orbital velocity | 18.97 km / s |
| Physical Properties | |
| Medium diameter | 11.64 km |
| Albedo | 0.328 |
| Rotation period | ? H |
| Absolute brightness | 11,749 likes |
| Spectral class | Xe |
| history | |
| Explorer | K. Reinmuth |
| Date of discovery | January 26, 1928 |
| Another name | 1928 BD, 1928 FU |
| 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. | |
(1155) Aënna is an asteroid of the main belt that was discovered on January 26, 1928 by the German astronomer Karl Wilhelm Reinmuth during his work at the observatory on the Königstuhl near Heidelberg .
The name is derived from the letters AN, which is an abbreviation for Astronomical News .