47P/Ashbrook–Jackson
 | |
| 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] |
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
[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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