14832 Alechinsky

14832 Alechinsky
Discovery [1]
Discovered by E. W. Elst
Discovery site La Silla Obs.
Discovery date 27 August 1987
Designations
MPC designation 14832 Alechinsky
Named after
 Pierre Alechinsky
(painter)[2]
1987 QC3 · 1994 PY32
main-belt · Flora [3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 10435 days (28.57 yr)
Aphelion 2.5766 AU (385.45 Gm)
Perihelion 2.0081 AU (300.41 Gm)
2.2923 AU (342.92 Gm)
Eccentricity 0.12401
3.47 yr (1267.7 d)
20.605°
0° 17m 2.328s / day
Inclination 5.7310°
307.51°
77.584°
Earth MOID 1.01913 AU (152.460 Gm)
Jupiter MOID 2.87846 AU (430.611 Gm)
Jupiter Tisserand parameter 3.581
Physical characteristics
Dimensions 4.359±0.176 km[4]
4.11 km (caculated)[3]
8.07±0.02 h[5]
9.5831±0.1453 h[6]
0.1943±0.0161[4]
0.24 (assumed)[3]
S [3]
14.2[1]
14.2[3][4]
14.02±0.84 (R)[5]
14.462±0.010 (R)[6]

    14832 Alechinsky, provisional designation 1987 QC3, is a stony asteroid from the inner regions of the asteroid belt, approximately 4 kilometers in diameter. It was discovered on 27 August 1987, by Belgian astronomer Eric Elst at ESO's La Silla Observatory site in northern Chile.[7]

    The S-type asteroid is a member of the Flora family, one of the largest groups of stony asteroids in the main-belt. It orbits the Sun at a distance of 2.0–2.6 AU once every 3 years and 6 months (1,268 days). Its orbit is tilted by 6° to the plane of the ecliptic and shows an eccentricity of 0.12.[1]

    The body has an albedo of 0.24, as assumed by the Collaborative Asteroid Lightcurve Link (CALL), with a calculated diameter of 4.1 kilometers,[3] while the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer finds an albedo of 0.19 and a corresponding diameter of 4.4 kilometers.[4]

    Two rotational light-curves obtained at the U.S. Palomar Transient Factory, California, gave a rotation period of 8.07±0.02 and 9.5831±0.1453 hours, with a high brightness variation of 0.98 and 1.30 in magnitude, respectively (U=2+/2).[5][6] This typically indicates that the body has an elongated shape.

    The minor planet was named after Belgian painter Pierre Alechinsky (b. 1927). He founded the expressionist movement "CoBRa", a name linking the cities of Copenhagen, Brussels and Amsterdam. He was one of the leading artist of mid-Century Europe, and is well known for his treatment of colors, versatility and graphic humor.[2]

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 14832 Alechinsky (1987 QC3)" (2016-03-17 last obs.). Jet Propulsion Laboratory. Retrieved 9 April 2016.
    2. 1 2 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (14832) Alechinsky. Springer Berlin Heidelberg. p. 817. ISBN 978-3-540-00238-3. Retrieved April 2016.
    3. 1 2 3 4 5 6 "LCDB Data for (14832) Alechinsky". Asteroid Lightcurve Database (LCDB). Retrieved April 2016.
    4. 1 2 3 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 April 2016.
    5. 1 2 3 Chang, Chan-Kao; Ip, Wing-Huen; Lin, Hsing-Wen; Cheng, Yu-Chi; Ngeow, Chow-Choong; Yang, Ting-Chang; et al. (June 2014). "313 New Asteroid Rotation Periods from Palomar Transient Factory Observations". The Astrophysical Journal 788 (1): 21. arXiv:1405.1144. Bibcode:2014ApJ...788...17C. doi:10.1088/0004-637X/788/1/17. Retrieved April 2016.
    6. 1 2 3 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 April 2016.
    7. ↑ "14832 Alechinsky (1987 QC3)". Minor Planet Center. Retrieved April 2016.

    External links


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