(249) Use
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Asteroid (249) Ilse |
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| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt |
| Major semi-axis | 2,377 AU |
| eccentricity | 0.217 |
| Perihelion - aphelion | 1.861 AU - 2.893 AU |
| Inclination of the orbit plane | 9.6 ° |
| Length of the ascending node | 334.8 ° |
| Argument of the periapsis | 41.9 ° |
| Time of passage of the perihelion | 17th August 2010 |
| Sidereal period | 3 a 243 d |
| Mean orbital velocity | 19.1 km / s |
| Physical Properties | |
| Medium diameter | 35 km |
| Albedo | 0.0428 |
| Rotation period | 85 h 14 min |
| Absolute brightness | 11.33 mag |
| history | |
| Explorer | CHF Peters |
| Date of discovery | August 16, 1885 |
| Another name | 1973 PB |
| 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. | |
(249) Ilse is an asteroid of the inner main asteroid belt , which on 16 August 1885 by Christian Heinrich Friedrich Peters at the observatory of Clinton ( United States was discovered).
Ilse moves at a distance of 1.8657 ( perihelion ) to 2.8927 ( aphelion ) astronomical units in 3.6699 years around the sun . The orbit is inclined 9.6294 ° to the ecliptic , the orbit eccentricity is 0.2158.
Ilse has a diameter of 35 kilometers. It has a dark surface with an albedo of 0.043.