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 27 June 2015 (JD 2457200.5)
Uncertainty parameter 0
Observation arc 61.52 yr (22,472 days)
Aphelion 2.0430 AU
Perihelion 1.8911 AU
1.9671 AU
Eccentricity 0.0386
2.76 yr (1,008 days)
84.093°
Inclination 16.844°
234.52°
313.69°
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][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]

    5175 Ables, provisional designation 1988 VS4, is a bright, stony asteroid from the inner regions of the asteroid belt, about 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.[9]

    The bright 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 shows an eccentricity of 0.04 and is tilted by 17 degrees to the plane of the ecliptic.[1]

    Between 2010 and 2014, several photometric light-curve analysis at the U.S. Palmer Divide Station in Colorado, have given a well-defined rotation period of 2.798 hours with a brightness amplitude of 0.10 in magnitude.[6][7] Based on the surveys carried out by the U.S. 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, while the Collaborative Asteroid Lightcurve Link (CALL) assumes an albedo of 0.30 and calculates a diameter of 5.3 kilometers.[3][4][5]

    The minor planet was named in honor of American astronomer Harold D. Ables (b. 1938), former director at the United States Naval Observatory Flagstaff Station (NOFS). He led the Flagstaff Station in its development of CCD capabilities for astrometry and spearheaded the transition from photographic to CCD techniques in parallax determinations. The name was proposed by the discoverers following a suggestion by the JPL Ephemeris Group.[2]

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 5175 Ables (1988 VS4)" (2015-12-01 last obs.). Jet Propulsion Laboratory. Retrieved January 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 January 2016.
    3. 1 2 3 4 5 "LCDB Data for (5175) Ables". Asteroid Lightcurve Database (LCDB). Retrieved January 2016.
    4. 1 2 3 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. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved January 2016.
    5. 1 2 3 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. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved January 2016.
    6. 1 2 Warner, Brian D. (January 2011). "Lightcurve Analysis at the Palmer Divide Observatory: 2010 June-September". Bulletin of the Minor Planets (Section of the Association of Lunar and Planetary Observers) 38 (1): 25–31. Bibcode:2011MPBu...38...25W. ISSN 1052-8091. Retrieved January 2016.
    7. 1 2 Warner, Brian D. (April 2014). "Asteroid Lightcurve Analysis at CS3-Palmer Divide Station: 2013 September-December". Bulletin of the Minor Planets (Section of the Association of Lunar and Planetary Observers) 41 (2): 102–112. Bibcode:2014MPBu...41..102W. ISSN 1052-8091. Retrieved January 2016.
    8. ↑ Warner, Brian D. (July 2014). "Asteroid Lightcurve Analysis at CS3-Palmer Divide Station: 2014 January-March". Bulletin of the Minor Planets (Section of the Association of Lunar and Planetary Observers) 41 (3): 144–155. Bibcode:2014MPBu...41..144W. ISSN 1052-8091. Retrieved January 2016.
    9. ↑ "5175 Ables (1988 VS4)". Minor Planet Center. Retrieved January 2016.

    External links


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