C/1874 H1 (Coggia)
Drawing of Coggia's Comet as seen between 10 June and 9 July 1874. | |
| Discovery | |
|---|---|
| Discovered by | Jérôme Eugène Coggia |
| Discovery site | Marseille Observatory |
| Discovery date | 17 April 1874 |
| Designations | |
| 1874 III, 1874c | |
| Orbital characteristics | |
| Epoch | 16 July 1874 (JD 2405720.5) |
| Observation arc | 185 days |
| Number of observations | 638 |
| Aphelion | ~620 AU (inbound) ~1,100 AU (outbound) |
| Perihelion | 0.676 AU |
| Semi-major axis | ~312 AU (inbound) ~551 AU (outbound) |
| Eccentricity | 0.99882 |
| Orbital period | ~5,510 years (inbound) ~12,950 years (outbound) |
| Inclination | 66.344° |
| 120.49° | |
| Argument of periapsis | 152.38° |
| Mean anomaly | 0.0005° |
| Last perihelion | 9 July 1874 |
| TJupiter | 0.418 |
| Physical characteristics | |
| 9.2 hours | |
| Comet total magnitude (M1) | 5.7 |
| 0.0–1.0 (1874 apparition) | |
C/1874 H1 (Coggia) is a non-periodic comet, which in the summer of 1874 could be seen by the naked eye. On the basis of its brightness, the comet has been called the Great Comet of 1874; on July 13 of that year its apparent magnitude peaked at between 0 and 1.