158 Koronis
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Discovery[1] and designation
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| Discovered by | Viktor Knorre |
| Discovery date | January 4, 1876 |
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Designations
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| Minor planet category |
Main belt |
| Epoch August 27, 2011 (JD 2455800.5) | |
| Aphelion | 453.282 Gm (3.030 AU) |
| Perihelion | 404.663 Gm (2.705 AU) |
| Semi-major axis | 428.897 Gm (2.867 AU) |
| Eccentricity | 0.057 |
| Orbital period | 1775.077 d (4.86 a) |
| Average orbital speed | 17.80 km/s |
| Inclination | 1.00° |
| Dimensions | 35.4 km |
| Sidereal rotation period |
14.218 h (0.592 d) |
| Axial tilt | ?° |
| Pole ecliptic longitude | ? |
| Geometric albedo | 0.277 |
| Spectral type | S |
| Absolute magnitude (H) | 9.27 |
158 Koronis /kəˈroʊnɨs/ is a main-belt, S-type asteroid.
It was discovered by Viktor Knorre on January 4, 1876, from the Berlin observatory. It was the first of his four asteroid discoveries.
The asteroid itself may not be spectacular, but the Koronidian family of asteroids named after it is one of the most important. One member of the family, 243 Ida, has been visited by spacecraft, and gives some idea of how the other asteroids in the family may look.
Based on a model constructed from the lightcurve, the shape of Koronis resembles that of Ida, although it is a bit larger. [3]
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This article about an S-type asteroid native to the main belt is a stub. You can help Wikipedia by expanding it. |
