(323137) 2003 BM80
(323137) 2003 BM80, provisional designation: 2003 BM80 and cometary designation 282P/2003 BM80, is an asteroid and main-belt comet from the outer regions of the asteroid belt, approximately 9.4 kilometers (5.8 miles) in diameter. It was discovered on 31 January 2003, by astronomers of the LONEOS program conducted at Anderson Mesa Station near Flagstaff, Arizona, in the United States.
DECam image, showing the comet activity in March 2021 | |
| Discovery | |
|---|---|
| Discovered by | LONEOS |
| Discovery site | Anderson Mesa Stn. |
| Discovery date | 31 January 2003 |
| Designations | |
MPC designation | (323137) 2003 BM80 |
Alternative designations | 2003 BM80 · 2003 FV112 282P/2003 BM80 |
Minor planet category | main-belt · (outer) main-belt comet |
| Orbital characteristics | |
| Epoch 1 July 2021 (JD 2459396.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 19.44 yr (7,101 d) |
| Aphelion | 5.04 AU |
| Perihelion | 3.44 AU |
Semi-major axis | 4.24 AU |
| Eccentricity | 0.189 |
Orbital period (sidereal) | 8.73 yr (3,190 d) |
Mean anomaly | 347° |
Mean motion | 0° 6m 46.8s / day |
| Inclination | 5.81° |
Longitude of ascending node | 9.3° |
| 218° | |
| Jupiter MOID | 0.176 AU |
| TJupiter | 2.991 |
| Physical characteristics | |
Mean diameter | 9.4 km (est. at 0.07) |
| 13.63 | |
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