89P/Russell

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89P/Russell
Discovery
Discovered by K. S. Russell at Siding Spring Observatory, New South Wales, Australia
Discovery date 28 September 1980
Orbital characteristics A
Epoch 27 June 2015
Aphelion 5.281 AU
Perihelion 2.2236 AU
Semi-major axis 3.7566 AU
Eccentricity 0.4081
Orbital period 7.26 yr
Inclination 12.06°
Last perihelion 14 December 2016[1]
Next perihelion 2024-Mar-26[2]

89P/Russell is a periodic comet in the Solar System with a current orbital period of 7.28 years.[3]

It was discovered on a photographic plate by Kenneth Russell of Siding Spring Observatory in New South Wales, Australia on 28 September 1980. Brightness was estimated at a magnitude of 17, the elliptical orbit calculated by Brian G. Marsden gave a perihelion date of 19 May 1980 and an orbital period of 7.12 years.

It has been observed on each subsequent apparition, most recently in 2009, the next perihelion is computed as 14 December 2016.

See also[edit]

List of numbered comets

References[edit]

  1. ^ "89P/Russell 2". Retrieved 15 April 2015. 
  2. ^ "89P/Russell Orbit". Minor Planet Center. Retrieved 2017-04-07. 
  3. ^ "86P/Russell 2". Gary Kronk. Retrieved 15 April 2015. 
Numbered comets
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