47P/Ashbrook–Jackson is a periodic comet in the Solar System.
| Discovery | |
|---|---|
| Discovered by | Joseph Ashbrook United States Cyril V. JacksonSouth Africa |
| Discovery date | August 26, 1948 |
| Designations | |
| 1948 IX; 1956 II; 1963 VI; 1971 III; 1978 XIV; 1986 II; 1993 XIII | |
| Orbital characteristics | |
| Epoch | March 6, 2006 |
| Aphelion | 5.44 AU |
| Perihelion | 2.759 AU |
| Semi-major axis | 4.1 AU |
| Eccentricity | 0.3269 |
| Orbital period | 8.301 a |
| Inclination | 13.2252° |
| Last perihelion | June 10, 2017[1] January 31, 2009 |
| Next perihelion | 2025-Oct-28[2] |
| Jupiter MOID | 0.117 AU (17,500,000 km)[3] |
The comet nucleus is estimated to be 5.6 kilometers in diameter.[3]
History edit
Comet 47P/Ashbrook–Jackson was discovered by Joseph Ashbrook and Cyril Jackson in 1948.
Name edit
47p is in the name because it was the 47th periodic comet discovered. Ashbrook–Jackson is the names of its two discoverers.
Apparitions edit
- 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 edit
- ^ MPC
- ^ "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)
- ^ a b "JPL Small-Body Database Browser: 47P/Ashbrook-Jackson" (2010-01-21 last obs). Jet Propulsion Laboratory. Retrieved 2010-03-01.
External links edit
- 47P/Ashbrook-Jackson – Seiichi Yoshida @ aerith.net
- 47P at Kronk's Cometography / Periodic comets
- 47P/Ashbrook-Jackson at the JPL Small-Body Database
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