846 Lipperta
| Discovery[1] | |
|---|---|
| Discovered by |
Gyllenberg, K. Bergedorf |
| Discovery date | 26 November 1916 |
| Designations | |
| Main belt[1] | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 99.23 yr (36245 d) |
| Aphelion | 3.6963 AU (552.96 Gm) (Q) |
| Perihelion | 2.5562 AU (382.40 Gm) (q) |
| 3.1262 AU (467.67 Gm) (a) | |
| Eccentricity | 0.18235 (e) |
| 5.53 yr (2019.0 d) | |
| 27.575° (M) | |
| 0° 10m 41.916s / day (n) | |
| Inclination | 0.26427° (i) |
| 261.44° (Ω) | |
| 129.22° (ω) | |
| Earth MOID | 1.5603 AU (233.42 Gm) |
| Jupiter MOID | 1.74705 AU (261.355 Gm) |
| Jupiter Tisserand parameter | 3.189 |
| Physical characteristics | |
Mean radius | 26.205±0.7 km (IRAS) |
| Mass | 1.5×1017 kg (assumed) |
| 1,641 h (68.4 d) | |
Sidereal rotation period | 1641 hr (68.375 d)[1][2] |
| 0.0506±0.003[1] | |
| 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 2 3 4 5 6 7 "JPL Small-Body Database Browser: 846 Lipperta (1916 AT)" (2011-12-01 last obs). Jet Propulsion Laboratory. Retrieved 4 May 2016.
- 1 2 Buchheim, Robert K.; Gartrelle, Gordon M. (July 2011). "846 Lipperta: A Very Slow Rotator". The Minor Planet Bulletin. 38 (3): 151–153. Bibcode:2011MPBu...38..151B. ISSN 1052-8091.
External links
- Orbital simulation from JPL (Java) / Ephemeris
- 846 Lipperta at the JPL Small-Body Database
This article is issued from Wikipedia - version of the 9/10/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.