352 Gisela
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| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery date | January 12, 1893 |
| Designations | |
| Alternative names |
1893 B; A895 XA; 1950 XT |
| Minor planet category | Main belt (Flora family) |
| Orbital characteristics[1] | |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 377.408 Gm (2.523 AU) |
| Perihelion | 278.943 Gm (1.865 AU) |
| Semi-major axis | 328.176 Gm (2.194 AU) |
| Eccentricity | 0.15 |
| Orbital period | 1186.756 d (3.25 a) |
| Average orbital speed | 20.11 km/s |
| Mean anomaly | 240.736° |
| Inclination | 3.382° |
| Longitude of ascending node | 247.431° |
| Argument of perihelion | 144.326° |
| Physical characteristics | |
| Dimensions | 20.0 km |
| Mass | ~1×1016 (estimate) |
| Mean density | ~2.7 g/cm³ (estimate)[2] |
| Equatorial surface gravity | ~0.007 m/s² (estimate) |
| Escape velocity | ~0.01 km/s (estimate) |
| Rotation period | 0.312 d (7.49 h) [1] |
| Albedo | 0.4261 [1] |
| Temperature |
~168 K max: 256 K (-16 °C) |
| Spectral type | S [1] |
| Absolute magnitude (H) | 10.22[3] |
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352 Gisela is an asteroid belonging to the Flora family in the Main Belt that has an unusually high albedo.
It was discovered by Max Wolf on January 12, 1893 in Heidelberg.
References
- ↑ 1.0 1.1 1.2 1.3 Yeomans, Donald K., "352 Gisela", JPL Small-Body Database Browser (NASA Jet Propulsion Laboratory), retrieved 2013-03-25.
- ↑ Krasinsky, G. A.; Pitjeva, E. V.; Vasilyev, M. V.; Yagudina, E. I. (2002), "Hidden Mass in the Asteroid Belt", Icarus 158: 98, Bibcode:2002Icar..158...98K, doi:10.1006/icar.2002.6837.
- ↑ Warner, Brian D. (December 2007), "Initial Results of a Dedicated H-G Project", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers 34: 113–119, Bibcode:2007MPBu...34..113W.
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