674 Rachele

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674 Rachele
Discovery
Discovered by Wilhelm Lorenz
Discovery site Heidelberg
Discovery date October 28, 1908
Designations
Alternative names 1908 EP
Orbital characteristics
Epoch August 18, 2005 (JDCT 2453600.5)
Aphelion 3.487 AU
Perihelion 2.370 AU
Semi-major axis 2.929 AU
Eccentricity 0.191
Orbital period 5.012 a
Mean anomaly 78.247°
Inclination 13.501°
Longitude of ascending node 58.252°
Argument of perihelion 42.449°

674 Rachele is a minor planet orbiting the Sun. It was discovered by Wilhelm Lorenz on October 28, 1908 in Heidelberg, and was named by orbit computer Emilio Bianchi after his wife.[1]

Measurements made using the adaptive optics system at the W. M. Keck Observatory give a size estimate of 89 km. It has a size ratio of 1.08 between the major and minor axes. By comparison, measurements reported in 1998 from the IRAS observatory give a similar size of 97 km and a ratio of 1.15.[2]

References[edit]

  1. ^ Schmadel, Lutz D. (2012), Dictionary of Minor Planet Names (6th ed.), Springer, p. 65, ISBN 3642297188. 
  2. ^ Marchis, F. et al. (November 2006), "Shape, size and multiplicity of main-belt asteroids. I. Keck Adaptive Optics survey", Icarus 185 (1): 39–63, Bibcode:2006Icar..185...39M, doi:10.1016/j.icarus.2006.06.001, PMC 2600456, PMID 19081813. 

External links[edit]