C/2009 F6 (Yi–SWAN)
< C
| Discovery | |
|---|---|
| Discovered by | Dae-am Yi Robert D. Matson (SWAN) |
| Discovery site | SOHO |
| Discovery date | 26 March 2009 |
| Orbital characteristics | |
| Epoch | 22 May 2009 (JD 2454973.5) |
| Observation arc | 330 days |
| Earliest precovery date | 25 March 2009 |
| Number of observations | 487 |
| Aphelion | 904 AU |
| Perihelion | 1.274 AU |
| Semi-major axis | 453 AU |
| Eccentricity | 0.99751 |
| Orbital period | ~9,600 years |
| Inclination | 85.764° |
| 278.68° | |
| Argument of periapsis | 129.77° |
| Mean anomaly | 0.0012° |
| Last perihelion | 8 May 2009 |
| TJupiter | 0.113 |
| Earth MOID | 0.505 AU |
| Jupiter MOID | 0.724 AU |
| Physical characteristics | |
Mean radius | 1.28 km (0.80 mi) |
| Comet total magnitude (M1) | 9.7 |
| Comet nuclear magnitude (M2) | 13.2 |
| 8.3 (2009 apparition) | |
C/2009 F6 (Yi–SWAN) is a non-periodic comet which first appeared in March 2009.