64P/Swift–Gehrels
From Infogalactic: the planetary knowledge core
| Discovery | |
|---|---|
| Discovered by | Lewis A. Swift Tom Gehrels |
| Discovery date | 17 November 1889 8 February 1973 |
| Alternative designations |
Swift 1 |
| Orbital characteristics A | |
| Aphelion | 7.4998 AU |
| Perihelion | 1.9508 AU |
| Semi-major axis | 4.4509 AU |
| Eccentricity | 0.688 |
| Orbital period | 9.23 a |
| Inclination | 8.9397° |
| Last perihelion | June 2009 |
| Next perihelion | 2018 |
64P/Swift-Gehrels is a periodic comet in the solar system which has a current orbital period of 9.23 years.
It was originally discovered on 17 November 1889 by Lewis A. Swift at the Warner Observatory, Rochester, New York, and was described by Swift as being pretty faint. It was rediscovered on 8 February 1973 by Tom Gehrels at the Palomar Observatory, California who estimated its brightness as a very low magnitude 19.[1]
It was also observed in 1991, 2000 and 2009.
See also
References
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| Periodic comets (by number) | ||
|---|---|---|
| Previous 63P/Wild |
64P/Swift–Gehrels | Next 65P/Gunn |
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