47P/Ashbrook–Jackson

47P/Ashbrook–Jackson
Discovery
Discovered byJoseph Ashbrook United States
Cyril V. JacksonSouth Africa
Discovery dateAugust 26, 1948
Designations
1948 IX; 1956 II; 1963 VI;
1971 III; 1978 XIV; 1986 II;
1993 XIII
Orbital characteristics
EpochMarch 6, 2006
Aphelion5.44 AU
Perihelion2.759 AU
Semi-major axis4.1 AU
Eccentricity0.3269
Orbital period8.301 a
Inclination13.2252°
Last perihelionJune 10, 2017[1]
January 31, 2009
Next perihelion2025-Oct-28[2]
Jupiter MOID0.117 AU (17,500,000 km)[3]

47P/Ashbrook–Jackson is a periodic comet in the Solar System.

The comet nucleus is estimated to be 5.6 kilometers in diameter.[3]

History

Comet 47P/Ashbrook–Jackson was discovered by Joseph Ashbrook and Cyril Jackson in 1948.

Name

47p is in the name because it was the 47th periodic comet discovered. Ashbrook–Jackson is the names of its two discoverers.

Apparitions

  • October 28, 2025
  • June 10, 2017
  • January 31, 2009
  • January 6, 2001
  • July 14, 1993
  • January 24, 1986
  • August 19, 1978
  • March 13, 1971
  • October 2, 1963
  • April 6, 1956
  • October 4, 1948

References

  1. ^ MPC
  2. ^ "Horizons Batch for 47P/Ashbrook-Jackson (90000557) on 2025-Oct-28" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Archived from the original on 2022-06-27. Retrieved 2023-07-06. (JPL#K257/4 Soln.date: 2023-May-04)
  3. ^ a b "JPL Small-Body Database Browser: 47P/Ashbrook-Jackson" (2010-01-21 last obs). Jet Propulsion Laboratory. Retrieved 2010-03-01.


Numbered comets
Previous
46P/Wirtanen
47P/Ashbrook–Jackson Next
48P/Johnson


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