846 Lipperta
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| Discovery[1] | |
|---|---|
| Discovered by |
Gyllenberg, K. Bergedorf |
| Discovery date | November 26, 1916 |
| Designations | |
| Minor planet category | Main belt[1] |
| Orbital characteristics[1] | |
|
Epoch 2012-Mar-14 (JD 2456000.5) | |
| Aphelion | 3.6983 AU (Q) |
| Perihelion | 2.5500 AU (q) |
| Semi-major axis | 3.1242 AU (a) |
| Eccentricity | 0.18378 |
| Orbital period | 5.52 yr |
| Mean anomaly | 102.38° (M) |
| Inclination | 0.26401° |
| Longitude of ascending node | 261.65° |
| Argument of perihelion | 128.98° |
| Physical characteristics | |
| Dimensions | 52.4 ± 1.4 km (IRAS)[1] |
| Mass | 1.5×1017 kg (assumed) |
| Sidereal rotation period | 1641 hr (68.375 d)[1][2] |
| Albedo | 0.0506[1] |
| Absolute magnitude (H) | 10.26[1] |
|
| |
846 Lipperta is a Themistian asteroid.
Based on lightcurve studies, Lipperta has a rotation period of 1641 hours, but this figure is based on less than full coverage, so that the period may be wrong by 30 percent or so.[1] The lack of variation in brightness could be caused by (a) very slow rotation, (b) near pole-on viewing aspect, or (c) a spherical body with uniform albedo.[2]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 "JPL Small-Body Database Browser: 846 Lipperta (1916 AT)". Jet Propulsion Laboratory. 2011-12-01 last obs. Retrieved 2012-01-29.
- ↑ 2.0 2.1 Buchheim, Robert K.; Gartrelle, Gordon M. (2011). "846 Lipperta: A Very Slow Rotator". The Minor Planet Bulletin (ISSN 1052-8091) 38 (3): 151–153. Bibcode:2011MPBu...38..151B.
External links
- Orbital simulation from JPL (Java) / Ephemeris
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