| 释义 |
- History
- Name
- Apparitions
- References
- External links
{{Infobox Comet
| name=47P/Ashbrook–Jackson
| image=
| discoverer=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
| epoch=March 6, 2006
| Jupiter_moid = {{cvt|0.117|AU|km}}
| semimajor=4.1 AU
| perihelion=2.759 AU
| aphelion=5.44 AU
| eccentricity=0.3269
| period=8.301 a
| inclination= 13.2252°
| last_p=June 10, 2017[1]
January 31, 2009
| next_p=2025-Oct-28 (JPL Horizons last obs 2018-10-13)
}}47P/Ashbrook–Jackson is a periodic comet in the Solar System. The comet nucleus is estimated to be 5.6 kilometers in diameter. 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|47p}}
}} External links - 47P/Ashbrook-Jackson – Seiichi Yoshida @ aerith.net
- 47P at Kronk's Cometography / Periodic comets
- {{JPL small body|name=47P/Ashbrook-Jackson|id=1000003}}
{{Comets}}{{PeriodicComets Navigator|46P/Wirtanen|48P/Johnson}}{{DEFAULTSORT:Ashbrook-Jackson, P047}}{{comet-stub}} 3 : Periodic comets|Comets in 2017|Astronomical objects discovered in 1948 |