92 Undina

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This article is about asteroid (92) Undina. For other uses, see Undine.
92 Undina
Discovery
Discovered by Christian Heinrich Friedrich Peters
Discovery date July 7, 1867
Designations
 
Minor planet category Main belt, Veritas family
Orbital characteristics
Epoch December 31, 2006 (JD 2454100.5)
Aphelion 525.202 Gm (3.511 AU)
Perihelion 429.240 Gm (2.869 AU)
477.221 Gm (3.190 AU)
Eccentricity 0.101
2081.086 d (5.70 a)
16.63 km/s
117.332°
Inclination 9.922°
101.830°
242.178°
Physical characteristics
Dimensions 124.44 ± 3.25[1] km
Mass (4.43 ± 0.25) × 1018[1] kg
Mean density
4.39 ± 0.42[1] g/cm3
Albedo 0.251 [2]
Temperature ~156 K
Spectral type
M
6.61

92 Undina (/ʌnˈdnə/ un-DY-nə; Latin: Undīna) is a large main belt asteroid. It has an unusually high albedo and an M-type spectrum. It was discovered by C. H. F. Peters on July 7, 1867. It is named for the eponymous heroine of Undine, a popular novella by Friedrich de la Motte Fouqué. Undina is a member of the Veritas asteroid family, which formed some eight million years ago. See 490 Veritas for details.

Observations performed at the Palmer Divide Observatory in Colorado Springs, Colorado in during 2007 produced a light curve with a period of 15.941 ± 0.002 hours with a brightness range of 0.20 ± 0.02 in magnitude. This matches a 15.94 hour period reported in 1979.[3]

References[edit]

  1. ^ a b c Carry, B. (December 2012), Density of asteroids, Planetary and Space Science 73: 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009.  See Table 1.
  2. ^ Asteroid Data Sets
  3. ^ Warner, Brian D. (September 2007), Asteroid Lightcurve Analysis at the Palmer Divide Observatory, Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers, Bibcode:2007MPBu...34...72W.