47P/Ashbrook–Jackson
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| 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° |
| Last perihelion | January 31, 2009 |
| Next perihelion | June 10, 2017[1] |
47P/Ashbrook–Jackson is a periodic comet in our solar system.
The comet nucleus is estimated to be 5.6 kilometers in diameter.[2]
History[edit]
Comet 47P/Ashbrook–Jackson was discovered by American and South African scientists 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]
- 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]
- ^ Patrick Rocher (2010-03-01). "Note number : 0020 P/Ashbrook-Jackson : 47P". Institut de mecanique celeste et de calcul des ephemerides. Retrieved 2012-02-20.
- ^ "JPL Small-Body Database Browser: 47P/Ashbrook-Jackson" (2010-01-21 last obs). Jet Propulsion Laboratory. Retrieved 2010-03-01.
External links[edit]
- Orbital simulation from JPL (Java) / Horizons Ephemeris
- 47P/Ashbrook-Jackson – Seiichi Yoshida @ aerith.net
- 47P at Kronk's Cometography / Periodic comets
| Periodic comets (by number) | ||
|---|---|---|
| Previous 46P/Wirtanen |
47P/Ashbrook–Jackson | Next 48P/Johnson |
 |
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