C/1963 R1 (Pereyra)
Comet Pereyra photographed by Charles F. Capen from the Table Mountain Observatory on 23 September 1963. | |
| Discovery | |
|---|---|
| Discovered by | Zenon M. Pereyra |
| Discovery site | Cordoba, Argentina |
| Discovery date | 14 September 1963 |
| Designations | |
| 1963 V, 1963e | |
| Orbital characteristics | |
| Epoch | 25 October 1963 (JD 2438327.5) |
| Observation arc | 86 days |
| Number of observations | 12 |
| Orbit type | Kreutz sungrazer (Population I) |
| Aphelion | 183 AU (inbound) 167 AU (outbound) |
| Perihelion | 0.00502 AU (1.08 R☉) |
| Semi-major axis | 92 AU (inbound) 84 AU (outbound) |
| Eccentricity | 0.99949 (inbound) 0.99936 (outbound) |
| Orbital period | 875 years (1800) 870 years (1963) 765 years (2200) |
| Inclination | 144.59° |
| 8.052° | |
| Argument of periapsis | 86.231° |
| Mean anomaly | 0.070° |
| Last perihelion | 23 August 1963 |
| TJupiter | –0.015 |
| Earth MOID | 0.556 AU |
| Jupiter MOID | 2.985 AU |
| Physical characteristics | |
Mean radius | 13.7 km (8.5 mi) |
| Mass | 3.80×1018 kg |
| Comet total magnitude (M1) | 5.5 |
| Comet nuclear magnitude (M2) | 14.3 |
Comet Pereyra (formal designations: C/1963 R1, 1963 V, and 1963e) was a bright comet that appeared in 1963. It was a member of the Kreutz Sungrazers, a group of comets that pass extremely close to the Sun. On 23 August 1963, it passed 56,000 km (35,000 mi) from the Sun's surface.