846 Lipperta

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846 Lipperta
Discovery [1]
Discovered by Gyllenberg, K.
Bergedorf
Discovery date26 November 1916
Designations
(846) Lipperta
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)
Physical characteristics
26.205±0.7 km (IRAS)
Mass 1.5×1017 kg (assumed)
1,641  h (68.4  d) [1] [2]
0.0506±0.003 [1]
10.26 [1]

    846 Lipperta is a slowly rotating Themistian asteroid located in the asteroid belt at a distance of 3.1 AU. It has a slow rotation period of 1641 hours making it one of the slowest rotating objects in the solar system discovered. [3]

    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. [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]

    It has been claimed that 846 Lipperta may show comet-like activity but this claim is unconfirmed. [3]

    References

    1. 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.
    2. 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.
    3. 1 2 "Lipperta Report No.7". britastro.org. Retrieved 11 April 2025.


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