846 Lipperta is a Themistian asteroid.
Discovery[1] | |
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Discovered by | Gyllenberg, K. Bergedorf |
Discovery date | 26 November 1916 |
Designations | |
MPC designation | (846) Lipperta |
Minor planet category | 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) |
Semi-major axis | 3.1262 AU (467.67 Gm) (a) |
Eccentricity | 0.18235 (e) |
Orbital period (sidereal) | 5.53 yr (2019.0 d) |
Mean anomaly | 27.575° (M) |
Mean motion | 0° 10m 41.916s / day (n) |
Inclination | 0.26427° (i) |
Longitude of ascending node | 261.44° (Ω) |
Argument of perihelion | 129.22° (ω) |
Physical characteristics | |
Mean radius | 26.205±0.7 km (IRAS) |
Mass | 1.5×1017 kg (assumed) |
Synodic rotation period | 1,641 h (68.4 d)[1][2] |
Geometric albedo | 0.0506±0.003[1] |
Absolute magnitude (H) | 10.26[1] |
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]
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