90P/Gehrels, also known as Gehrels 1, is a Jupiter-family comet in the Solar System.[1]

90P/Gehrels
Discovery
Discovered byTom Gehrels
Discovery date11 October 1972
Alternative
designations
Gehrels 1
Orbital characteristics A
Epoch15 June 2002
Observation arc29 years (1972-2001)
No. of observations used52
Aphelion9.110 AU
Perihelion2.966 AU
Semi-major axis6.038 AU
Eccentricity0.5088
Orbital period14.8 yr
Inclination9.616°
Last perihelion19 June 2017[1][2]
22 June 2002
Next perihelion2032-May-19[1][2]

ReferencesEdit

  1. ^ a b c "JPL Small-Body Database Browser". JPL. Retrieved 30 April 2015
  2. ^ a b MPC
Numbered comets
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89P/Russell
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