5677 Aberdonia

5677 Aberdonia
Discovery [1]
Discovered by E. Bowell
Discovery site Anderson Mesa Stn.[2]
Discovery date 21 September 1987
Designations
MPC designation 5677 Aberdonia
Named after
 University of Aberdeen
(Scottish university)[3]
1987 SQ1 · 1973 UL1
1978 WN16 · 1989 AK8
main-belt · Koronis [4]
Orbital characteristics [1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 60.91 yr (22,249 days)  
Aphelion 3.0069 AU
Perihelion 2.6635 AU
2.8352 AU
Eccentricity 0.0605
4.77 yr (1,744 days)
326.35°
0° 12m 23.04s / day
Inclination 1.5000°
201.11°
216.74°
Physical characteristics
Dimensions 8.798±0.114 km[5]
8.19 km (calculated)[4]
5.0813±0.0410 h[6]
0.2502±0.0225[5]
0.24 (assumed)[4]
S [4]
12.6[1][4]
12.4[5]
13.224±0.003 (S)[6]
12.70±0.32[7]

    5677 Aberdonia, provisional designation 1987 SQ1, is a stony Koronis asteroid from the outer region of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 21 September 1987, by American astronomer Edward Bowell at Lowell's U.S. Anderson Mesa Station in Flagstaff, Arizona.[2]

    The S-type asteroid is a member of the Koronis family, a group consisting of about 200 known bodies with nearly ecliptical orbits. It orbits the Sun at a distance of 2.7–3.0 AU once every 4 years and 9 months (1,744 days). Its orbit is tilted by 1° to the plane of the ecliptic and shows an eccentricity of 0.06.[1] The first precovery was obtained at Palomar Observatory in 1954, extending the asteroid's observation arc by 33 years prior to its discovery.[2]

    In October 2011, a rotational light-curve was obtained from photometric observations at the U.S. Palomar Transient Factory in California. The light-curve showed a rotation period of 5.0813±0.0410 hours with a brightness amplitude of 0.20 in magnitude (U=2).[6] According to the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, the asteroid measures 8.8 kilometers in diameter and its surface has an albedo of 0.25,[5] while the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 and calculates a diameter of 8.2 kilometers.[4]

    The minor planet was named for the Scottish University of Aberdeen on its 500th anniversary in 1995. James Clerk Maxwell and George Paget Thomson are the university's best known former holders of chairs of natural philosophy. The university is also known for its first chair of medicine in the English-speaking world, and for having taught astronomy already in the late 16th century.[3] Naming citation was published on 15 February 1995 (M.P.C. 24765).[8]

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 5677 Aberdonia (1987 SQ1)" (2015-11-20 last obs.). Jet Propulsion Laboratory. Retrieved April 2016.
    2. 1 2 3 "5677 Aberdonia (1987 SQ1)". Minor Planet Center. Retrieved April 2016.
    3. 1 2 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (5677) Aberdonia. Springer Berlin Heidelberg. p. 481. ISBN 978-3-540-00238-3. Retrieved April 2016.
    4. 1 2 3 4 5 6 "LCDB Data for (5677) Aberdonia". Asteroid Lightcurve Database (LCDB). Retrieved April 2016.
    5. 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.
    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. ↑ 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 April 2016.
    8. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved April 2016.

    External links


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