13003 Dickbeasley

13003 Dickbeasley

Discovery
Discovered by	E. Bowell
Discovery site	Anderson Mesa Stn.
Discovery date	21 March 1982
Designations
MPC designation	13003 Dickbeasley
Named after	Dick Beasley (NAU, artist)
Alternative names	1982 FN · 1982 HJ2
Minor planet category	main-belt · (inner)
Orbital characteristics
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	33.45 yr (12,217 days)
Aphelion	3.0838 AU
Perihelion	2.0337 AU
Semi-major axis	2.5588 AU
Eccentricity	0.2052
Orbital period	4.09 yr (1,495 days)
Mean anomaly	131.13°
Inclination	26.562°
Longitude of ascending node	177.56°
Argument of perihelion	33.302°
Physical characteristics
Dimensions	8.240±0.119 km 5.41 km (calculated)
Rotation period	3.502±0.001 h 3.4999±0.0005 h 3.4992±0.0090 h
Geometric albedo	0.0739±0.0109 0.20 (assumed)
Spectral type	S
Absolute magnitude (H)	13.7 14.402±0.008 (S) 14.25±0.89

13003 Dickbeasley, provisional designation 1982 FN, is a stony asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered by American astronomer Edward Bowell at Lowell's Anderson Mesa Station on 21 March 1982.

The S-type asteroid orbits the Sun at a distance of 2.0–3.1 AU once every 4 years and 1 month (1,495 days). Its orbit has an eccentricity of 0.21 and an inclination of 27° with respect to the ecliptic. As no precoveries were taken, the asteroid's observation arc begins with its discovery in 1982.

A rotational light-curve for this asteroid was obtained from photometric observations made at the Phillips Academy Observatory (I12) in April 2015. It showed a rotation period of 3.502±0.001 hours with a brightness variation of 0.44 in magnitude (U=3-). One month later, in May 2015, observations at Texas Tech's Preston Gott Observatory gave a similar concurring period of 3.4999±0.0005 hours with an amplitude of 0.30 in magnitude (U=3-). The first light-curve was obtained at the U.S. Palomar Transient Factory in September 2012, which gave a period of 3.4992±0.0090 hours and amplitude of 0.42 (U=2).

According to the surveys carried out by the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, the asteroid measures 8.2 kilometers in diameter and its surface has an albedo of 0.07, while he Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 5.4 kilometers, based on an absolute magnitude of 13.7.

The minor planet was named in memory of Richard "Dick" E. Beasley (1934–1992), a teacher and administrator at Northern Arizona University. He was also a multi-media artist and a preeminent figure in the calligraphic world. Naming citation was published on 9 February 2009 (M.P.C. 65122).

External links

• Richard E. Beasley, Biography
• Richard E. Beasley (1934–1992), The Art of the Letter
• 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 (10001)-(15000) – Minor Planet Center
• 13003 Dickbeasley at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters