273P/Pons–Gambart, also called Comet Pons-Gambart, is a long-period comet first discovered on June 21, 1827 by Jean-Louis Pons and Jean-Félix Adolphe Gambart. It was lost and was not recovered until November 7, 2012, when amateur astronomer Rob Matson discovered a comet, and it was identified that the orbital calculations for Pons-Gambart were completely wrong.[2]

273P/Pons-Gambart
Discovery
Discovered byJean-Louis Pons, Jean-Félix Adolphe Gambart (first discovery)
Rob Matson (second discovery)
Discovery dateJune 21, 1827 (first discovery)
November 7, 2012 (second discovery)
Orbital characteristics A
Epoch2014-May-22 (2456799.5)
Observation arc187 years
Aphelion64.274 AU
Perihelion0.81043 AU
Semi-major axis32.542 AU
Eccentricity0.97509
Orbital period185.6 years
Inclination136.39
TJupiter-0.643
Last perihelionDecember 19, 2012[1]
Next perihelion2191-Aug-17 (JPL Horizons)

ReferencesEdit

  1. ^ MPC
  2. ^ Kronk, Gary W. "273P/Pons-Gambart". Retrieved September 6, 2015.