5175 Ables

5175 Ables
Discovery [1]
Discovered by C. S. Shoemaker
E. M. Shoemaker
Discovery site Palomar Obs.
Discovery date 4 November 1988
Designations
MPC designation 5175 Ables
Named after
 Harold Ables
(astronomer)[2]
1988 VS4 · 1990 KH
main-belt (inner) · Hungaria [3]
Orbital characteristics [1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 61.52 yr (22,472 days)
Aphelion 2.0431 AU
Perihelion 1.8909 AU
1.9670 AU
Eccentricity 0.0386
2.76 yr (1,008 days)
226.77°
0° 21m 25.92s / day
Inclination 16.845°
234.51°
313.89°
Physical characteristics
Dimensions 5.697±0.024 km[4]
4.29±0.23 km[5]
5.31 km (calculated)[3]
2.798±0.002 h[6]
2.798±0.001 h[7]
2.7976±0.0005 h[8]
0.2897±0.0604[4]
0.505±0.074[5]
0.30 (assumed)[3]
E [3]
13.3[1][3]
13.2[4][5]
13.83±0.37[9]

    5175 Ables, provisional designation 1988 VS4, is a bright Hungaria asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered by American astronomers Carolyn and Eugene Shoemaker at the U.S. Palomar Observatory, California, on 4 November 1988.[10]

    The stony E-type asteroid is a member of the Hungaria family, which form the innermost dense concentration of asteroids in the Solar System. It orbits the Sun at a distance of 1.9–2.0 AU once every 2 years and 9 months (1,008 days). Its orbit has an unusually low eccentricity of 0.04 and an inclination of 17° with respect to the ecliptic.[1] The first precovery was obtained at Palomar Observatory in 1954, extending the asteroid's observation arc by 34 years prior to its discovery.[10]

    Based on the surveys carried out by the NASA's space-based Wide-field Infrared Survey Explorer and its subsequent NEOWISE mission, the asteroid has an albedo of 0.29 and 0.51, with a corresponding diameter of 5.7 and 4.3 kilometers, respectively,[4][5] while the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.30 and calculates a diameter of 5.3 kilometers.[3] Between 2010 and 2014, three rotational light-curves have been obtained by American astronomer Brian Warner at the Palmer Divide Station, Colorado. The best result gave a well-defined rotation period of 2.798±0.002 hours with a brightness amplitude of 0.10 in magnitude (U=3).[6][7][8]

    The minor planet was named after American astronomer Harold D. Ables (b. 1938). While director at the United States Naval Observatory Flagstaff Station (NOFS), he was responsible for the station's transition from photographic plates to CCD imaging. The body's name was suggested by the JPL Ephemeris Group and subsequently proposed by the discoverers.[2] Naming citation was published on 1 July 1996 (M.P.C. 27459).[11]

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 5175 Ables (1988 VS4)" (2015-12-01 last obs.). Jet Propulsion Laboratory. Retrieved 27 April 2016.
    2. 1 2 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (5175) Ables. Springer Berlin Heidelberg. p. 445. ISBN 978-3-540-00238-3. Retrieved 27 April 2016.
    3. 1 2 3 4 5 6 "LCDB Data for (5175) Ables". Asteroid Lightcurve Database (LCDB). Retrieved 27 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:1109.6407Freely accessible. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 27 April 2016.
    5. 1 2 3 4 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv:1209.5794Freely accessible. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved 13 January 2016.
    6. 1 2 Warner, Brian D. (January 2011). "Lightcurve Analysis at the Palmer Divide Observatory: 2010 June-September". The Minor Planet Bulletin. 38 (1): 25–31. Bibcode:2011MPBu...38...25W. ISSN 1052-8091. Retrieved 13 January 2016.
    7. 1 2 Warner, Brian D. (April 2014). "Asteroid Lightcurve Analysis at CS3-Palmer Divide Station: 2013 September-December". The Minor Planet Bulletin. 41 (2): 102–112. Bibcode:2014MPBu...41..102W. ISSN 1052-8091. Retrieved 13 January 2016.
    8. 1 2 Warner, Brian D. (July 2014). "Asteroid Lightcurve Analysis at CS3-Palmer Divide Station: 2014 January-March". The Minor Planet Bulletin. 41 (3): 144–155. Bibcode:2014MPBu...41..144W. ISSN 1052-8091. Retrieved 13 January 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:1506.00762Freely accessible. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 27 April 2016.
    10. 1 2 "5175 Ables (1988 VS4)". Minor Planet Center. Retrieved 27 April 2016.
    11. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 27 April 2016.

    External links

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