(323137) 2003 BM80, provisional designation 2003 BM80 and cometary designation 282P, is an asteroid and main-belt comet from the outer regions of the asteroid belt, approximately 4 kilometers 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.[2]

(323137) 2003 BM80
Discovery [1]
Discovered byLONEOS
Discovery siteAnderson Mesa Stn.
Discovery date31 January 2003
MPC designation(323137) 2003 BM80
2003 BM80 · 2003 FV112
main-belt[2] · (outer)[1]
main-belt comet[3]
Orbital characteristics[1]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc12.69 yr (4,635 days)
Aphelion5.0540 AU
Perihelion3.4439 AU
4.2489 AU
8.76 yr (3,199 days)
0° 6m 45s / day
Jupiter MOID0.1691 AU
Physical characteristics
Dimensions4.4 km (est. at 0.07)[4]


Orbit and classificationEdit

2003 BM80 is a main-belt comet with a Jupiter Tisserand's parameter of 2.99.[1][3] It orbits the Sun in the outer asteroid belt at a distance of 3.4–5.1 AU once every 8 years and 9 months (3,199 days; semi-major axis of 4.25 AU). Its orbit has an eccentricity of 0.19 and an inclination of 6° with respect to the ecliptic.[1]

The body's observation arc begins with its first precovery observation by the NEAT program in December 2001, more than a year prior to its official discovery observation at Anderson Mesa.[2]

Physical characteristicsEdit

Based on a generic magnitude-to-diameter conversion, 2003 BM80 measures approximately 4.4 kilometers in diameter using an absolute magnitude of 15.3 and an estimated albedo 0.07, typical for rather dark cometary-like bodies.[4]

As of 2018, no rotational lightcurve of 2003 BM80 has been obtained from photometric observations. The body's rotation period, shape and spin axis remain unknown.[1]

Numbering and namingEdit

This minor planet was numbered by the Minor Planet Center on 6 April 2012.[5] As of 2018, it has not been named.[2]


  1. ^ a b c d e f g "JPL Small-Body Database Browser: 323137 (2003 BM80)" (2014-08-27 last obs.). Jet Propulsion Laboratory. Retrieved 14 February 2018.
  2. ^ a b c d "323137 (2003 BM80)". Minor Planet Center. Retrieved 14 February 2018.
  3. ^ a b Jonathan Shanklin. "(323137) = 2003 BM80 = 2003 FV112". University of Cambridge – Institute of Astronomy. Retrieved 14 February 2018.
  4. ^ a b "Asteroid Size Estimator". CNEOS NASA/JPL. Retrieved 14 February 2018.
  5. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 25 February 2018.

External linksEdit