13003 Dickbeasley

13003 Dickbeasley, provisional designation 1982 FN, is a background asteroid from the central region 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.[2] The asteroid was named in memory of American NAU administrator Dick Beasley.[2]

13003 Dickbeasley
Discovery [1]
Discovered byE. Bowell
Discovery siteAnderson Mesa Stn.
Discovery date21 March 1982
Designations
(13003) Dickbeasley
Named after
Dick Beasley (NAU, artist)[2]
1982 FN · 1982 HJ2
main-belt · (inner) [3]
background
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc34.66 yr (12,661 days)
Aphelion3.0838 AU
Perihelion2.0332 AU
2.5585 AU
Eccentricity0.2053
4.09 yr (1,495 days)
227.37°
0° 14m 26.88s / day
Inclination26.560°
177.56°
33.358°
Physical characteristics
Mean diameter
5.41 km (calculated)[3]
8.240±0.119 km[4][5]
3.4992±0.0090 h[6]
3.4999±0.0005 h[7]
3.502±0.001 h[8]
0.074±0.011[4][5]
0.20 (assumed)[3]
S (assumed)[3]
13.7[1][3][4] · 14.402±0.008 (S)[6] · 14.25±0.89[9]

    Orbit and classification

    Dickbeasley is a non-family asteroid from the main belt's background population. It orbits the Sun in the central main-belt 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.[1] The body's observation arc begins with its official discovery observation, as no precoveries were taken, and no prior identifications were made.[2]

    Naming

    This minor planet was named in memory of American 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.[2] The approved naming citation was published by the Minor Planet Center on 9 February 2009 (M.P.C. 65122).[10]

    Physical characteristics

    Rotation period

    In April 2015, a rotational lightcurve of Dickbeasley was obtained from photometric observations made at the Phillips Academy Observatory (I12). It gave a rotation period of 3.502 hours with a brightness variation of 0.44 magnitude (U=3-).[8] One month later, in May 2015, observations at Texas Tech's Preston Gott Observatory gave a concurring period of 3.4999 hours with an amplitude of 0.30 magnitude (U=3-).[7]

    These results supersede the first obtained lightcurve at the Palomar Transient Factory from September 2012, which gave a period of 3.4992 hours and an amplitude of 0.42 (U=2).[6]

    Diameter and albedo

    According to the surveys carried out by the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, Dickbeasley measures 8.2 kilometers in diameter and its surface has an albedo of 0.07,[4][5] while he Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 5.4 kilometers with an absolute magnitude of 13.7.[3]

    References
    1. "JPL Small-Body Database Browser: 13003 Dickbeasley (1982 FN)" (2016-11-18 last obs.). Jet Propulsion Laboratory. Retrieved 24 June 2017.
    2. "13003 Dickbeasley (1982 FN)". Minor Planet Center. Retrieved 23 May 2016.
    3. "LCDB Data for (13003) Dickbeasley". Asteroid Lightcurve Database (LCDB). Retrieved 23 May 2016.
    4. Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 23 May 2016.
    5. Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. arXiv:1109.4096. Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. Retrieved 3 December 2016.
    6. Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry". The Astronomical Journal. 150 (3): 35. arXiv:1504.04041. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved 23 May 2016.
    7. Clark, Maurice (January 2016). "Asteroid Photometry from the Preston Gott Observatory". The Minor Planet Bulletin. 43 (1): 2–5. Bibcode:2016MPBu...43....2C. ISSN 1052-8091. Retrieved 23 May 2016.
    8. Odden, Caroline; Jenkins, Ravn; Nasser, Ravenne; Nix, Sabine; Dear, Anna (October 2015). "Finding the Lightcurve and Rotation Period of Minor Planet 13003 Dickbeasley". The Minor Planet Bulletin. 42 (4): 237. Bibcode:2015MPBu...42..237O. ISSN 1052-8091. Retrieved 23 May 2016.
    9. Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 23 May 2016.
    10. "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 23 May 2016.

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