639 Latona

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639 Latona
Discovery
Discovered by K. Lohnert
Discovery site Heidelberg
Discovery date July 19, 1907
Designations
1907 ZT
Orbital characteristics[1]
Epoch August 18, 2005 (JDCT 2453600.5)
Aphelion 3.332 AU
Perihelion 2.712 AU
3.022 AU
Eccentricity 0.103
6.22 a
226.457°
Inclination 8.562°
280.218°
66.502°

639 Latona is a minor planet orbiting the Sun that was discovered by German astronomer Karl Julius Lohnert on July 19, 1907 at Heidelberg.

Photometric observations of this asteroid at Palmer Divide Observatory in Colorado Springs, Colorado during 2007 gave a light curve with a period of 6.139 ± 0.002 hours and a brightness variation of 0.08 ± 0.01 in magnitude. This confirms period measurements of about 6.2 hours reported in 1987 and 2001.[2]

This is a member of the dynamic Eos family of asteroids that most likely formed as the result of a collisional breakup of a parent body.[3]

References[edit]

  1. ^ Yeomans, Donald K., "639 Latona", JPL Small-Body Database Browser (NASA Jet Propulsion Laboratory), retrieved 2013-03-30. 
  2. ^ Warner, Brian D. (June 2008), "Asteroid Lightcurve Analysis at the Palmer Divide Observatory - June - October 2007", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers 35 (2): 56–60, Bibcode:2008MPBu...35...56W. 
  3. ^ Veeder, G. J. et al. (March 1995), "Eos, Koronis, and Maria family asteroids: Infrared (JHK) photometry", Icarus 114: 186–196, Bibcode:1995Icar..114..186V, doi:10.1006/icar.1995.1053, CiteSeerX: 10.1.1.31.2739. 

External links[edit]