C/1989 Y2 (McKenzie–Russell)
< C
| Discovery | |
|---|---|
| Discovered by | Patricia McKenzie Kenneth S. Russell |
| Discovery site | Anglo-Australian Observatory |
| Discovery date | 21 December 1989 |
| Designations | |
| 1989f1 1989 XVIII | |
| Orbital characteristics | |
| Epoch | 30 December 1989 (JD 2447890.5) |
| Observation arc | 50 days |
| Earliest precovery date | 19 December 1989 |
| Number of observations | 45 |
| Perihelion | 1.976 AU |
| Eccentricity | 0.99999 |
| Inclination | 160.366° |
| 293.896° | |
| Argument of periapsis | 191.736° |
| Last perihelion | 7 November 1989 |
| TJupiter | –1.641 |
| Earth MOID | 0.9962 AU |
| Jupiter MOID | 1.4407 AU |
| Comet total magnitude (M1) | 10.0 |
Comet McKenzie–Russell, formally designated as C/1989 Y2, is a hyperbolic comet that was discovered by Australian astronomers, Patricia McKenzie and Kenneth S. Russell on December 1989.