C/1980 E1 (Bowell)
C/1980 E1 is a non-periodic comet discovered by Edward L. G. Bowell on 11 February 1980 and which came closest to the Sun (perihelion) in March 1982. It is leaving the Solar System on a hyperbolic trajectory due to a close approach to Jupiter. In the 43 years since its discovery only two objects with higher eccentricities have been identified, 1I/ʻOumuamua (1.2) and 2I/Borisov (3.35).
Hyperbolic path with annual motion | |
| Discovery | |
|---|---|
| Discovered by | Edward L. G. Bowell |
| Discovery date | 11 February 1980 |
| Designations | |
Alternative designations | C/1980 E1 |
| Orbital characteristics | |
| Epoch | JD 2444972.5 (3 January 1982) |
| Observation arc | 6.88 years |
| Number of observations | 187 |
| Aphelion | ~75000 AU (inbound) |
| Perihelion | 3.3639 AU |
| Eccentricity | 1.057 (hyperbolic trajectory) 1.053 (epoch 1984+) |
| Orbital period | ~7.1 million years (epoch 1950) Ejection (epoch 1977+) |
| Inclination | 1.6617° |
Longitude of ascending node | 114.558° |
| Argument of periapsis | 135.083° |
| Last perihelion | 12 March 1982 |
| Physical characteristics | |
| Dimensions | > 1 km |
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