C/1963 F1 (Alcock)
< C
Comet Alcock photographed from the US Naval Observatory on 21 March 1963. | |
| Discovery | |
|---|---|
| Discovered by | George E. D. Alcock |
| Discovery site | Peterborough, England |
| Discovery date | 19 March 1963 |
| Designations | |
| 1963b 1963 III | |
| Orbital characteristics | |
| Epoch | 15 May 1963 (JD 2438164.5) |
| Observation arc | 118 days |
| Number of observations | 101 |
| Aphelion | 1,476 AU |
| Perihelion | 1.537 AU |
| Semi-major axis | 738.8 AU |
| Eccentricity | 0.99738 |
| Orbital period | ~14,200 years |
| Inclination | 86.219° |
| 43.465° | |
| Argument of periapsis | 146.62° |
| Last perihelion | 5 May 1963 |
| TJupiter | 0.108 |
| Earth MOID | 0.632 AU |
| Jupiter MOID | 2.855 AU |
| Physical characteristics | |
| Comet total magnitude (M1) | 6.6 |
| Comet nuclear magnitude (M2) | 13.9 |
| 4.4 (1963 apparition) | |
Comet Alcock, formally designated as C/1963 F1 is a non-periodic comet that became barely visible to the naked eye in May 1963. It is the third of five comets discovered by English astronomer, George Alcock.