47P/Ashbrook–Jackson
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 |
| Alternative designations | 1948 IX; 1956 II; 1963 VI; 1971 III; 1978 XIV; 1986 II; 1993 XIII |
| Orbital characteristics A | |
| 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° |
| Jupiter MOID | 0.117 AU (17,500,000 km)[1] |
| Last perihelion | June 10, 2017[2] January 31, 2009 |
| Next perihelion | 2025-Oct-28 (JPL Horizons last obs 2018-10-13) |
The comet nucleus is estimated to be 5.6 kilometers in diameter.[1]
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
- "JPL Small-Body Database Browser: 47P/Ashbrook-Jackson" (2010-01-21 last obs). Jet Propulsion Laboratory. Retrieved 2010-03-01.
- MPC
External links
- 47P/Ashbrook-Jackson – Seiichi Yoshida @ aerith.net
- 47P at Kronk's Cometography / Periodic comets
- 47P/Ashbrook-Jackson at the JPL Small-Body Database
| Numbered comets | ||
|---|---|---|
| Previous 46P/Wirtanen |
47P/Ashbrook–Jackson | Next 48P/Johnson |
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