C/1989 Q1 (Okazaki–Levy–Rudenko)
< C
| Discovery | |
|---|---|
| Discovered by |
|
| Discovery date | 24–26 August 1989 |
| Designations | |
| 1989 XIX, 1989r | |
| Orbital characteristics | |
| Epoch | 8 October 1989 (JD 2447807.5) |
| Observation arc | 122 days |
| Number of observations | 255 |
| Perihelion | 0.642 AU |
| Eccentricity | 1.00006 |
| Inclination | 90.146° |
| 275.51° | |
| Argument of periapsis | 150.57° |
| Last perihelion | 11 November 1989 |
| Earth MOID | 0.288 AU |
| Jupiter MOID | 1.008 AU |
| Physical characteristics | |
Mean radius | 1.00±0.12 km |
| Mass | 1.8×1012 kg |
Mean density | 460±80 kg/m3 |
| Comet total magnitude (M1) | 7.5 |
| 4.9 (1989 apparition) | |
Comet Okazaki–Levy–Rudenko, also known by its formal designation C/1989 Q1, is a hyperbolic comet that was barely visible to the naked eye from August 1989 to January 1990. It is also notable for having an orbit that is almost perpendicular to the ecliptic.