64P/Swift–Gehrels
< 64P
Comet Swift–Gehrels photographed by Alexander Vasenin from Moscow, Russia on 11 October 2018 | |
| Discovery | |
|---|---|
| Discovered by | Lewis A. Swift Tom Gehrels |
| Discovery date | 17 November 1889 8 February 1973 |
| Designations | |
| P/1889 W1 P/1973 C1 | |
| Swift 1 1889f, 1973d, 1981j, 1991c 1889 VI, 1972 VII, 1981 XIX, 1991 II | |
| Orbital characteristics | |
| Epoch | 9 December 2017 (JD 2458096.5) |
| Observation arc | 6,707 days (18.36 years) |
| Number of observations | 3,436 |
| Aphelion | 7.518 AU |
| Perihelion | 1.393 AU |
| Semi-major axis | 4.456 AU |
| Eccentricity | 0.687 |
| Orbital period | 9.407 years |
| Inclination | 8.948° |
| 300.00° | |
| Argument of periapsis | 97.144° |
| Last perihelion | 3 November 2018 |
| Next perihelion | 31 March 2028 |
| TJupiter | 2.496 |
| Earth MOID | 0.4401 AU |
| Jupiter MOID | 0.6491 AU |
| Physical characteristics | |
| Dimensions | 3.2 km (2.0 mi) |
| Comet total magnitude (M1) | 14.5 |
| 9.0 (2018 apparition) | |
64P/Swift–Gehrels is a periodic comet in the Solar System which has a current orbital period of 9.23 years.