(323137) 2003 BM₈₀

(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 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
Minor planet category	main-belt [2] · (outer) [1] main-belt comet [3]
Orbital characteristics [1]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc	12.69 yr (4,635 days)
Aphelion	5.0540 AU
Perihelion	3.4439 AU
Semi-major axis	4.2489 AU
Eccentricity	0.1895
Orbital period	8.76 yr (3,199 days)
Mean anomaly	212.70°
Mean motion	0° 6^m 45^s / day
Inclination	5.8094°
Longitude of ascending node	9.3458°
Argument of perihelion	217.18°
Jupiter MOID	0.1691 AU
TJupiter	2.990
Physical characteristics
Dimensions	4.4 km (est. at 0.07)[4]
Absolute magnitude (H)	15.3[1]

Orbit and classification

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 characteristics

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 naming

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

References

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

External links

• 282P/(323137) 2003 BM80 (2021), MISAO project, Seiichi Yoshida
• Asteroid Lightcurve Database (LCDB), query form (info)
• Dictionary of Minor Planet Names, Google books
• Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
• Discovery Circumstances: Numbered Minor Planets (320001)-(325000) – Minor Planet Center
• (323137) 2003 BM80 at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• (323137) 2003 BM80 at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters