1865 Cerberus

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For the moon of Pluto, see Kerberos (moon).
1865 Cerberus
1865Cerberus (Lightcurve Inversion).png
Light-curve-based 3-D model of Cerberus
Discovery [1]
Discovered by L. Kohoutek
Discovery site Bergedorf Obs.
Discovery date 26 October 1971
Designations
MPC designation 1865 Cerberus
Pronunciation ˈsɜr bər əs (sur-ber-uh s)
Named after
Cerberus (Greek mythology)[2]
1971 UA
Apollo · NEO[1][3]
Orbital characteristics[1]
Epoch 16 February 2017 (JD 2457800.5)
Uncertainty parameter 0
Observation arc 45.05 yr (16,456 days)
Aphelion 1.5843 AU
Perihelion 0.5757 AU
1.0800 AU
Eccentricity 0.4670
1.12 yr (410 days)
29.571°
0° 52m 41.16s / day
Inclination 16.095°
212.93°
325.25°
Earth MOID 0.1566 AU
Physical characteristics
Dimensions 1.2 km (Gehrels)[1]
1.608 km[4]
1.61 km (taken)[5]
1.611±0.013 km[6]
6.800±0.006 h[7]
6.80328±0.00001 h[8]
6.803286±0.000005 h[9]
6.8039 h[a]
6.804±0.003 h[10]
6.810±0.003 h[11]
6.81 h[b]
6.87 h[12]
0.1118[4]
0.136±0.021[6]
0.22
0.50±0.29[13]
B–V = 0.790[1]
U–B = 0.442[1]
S (Tholen)[1] · S (SMASS)[1] · S[5][14]
16.45±0.07 (R)[a] · 16.84[1][6] · 16.965±0.04[4][5] · 16.97±0.04[7] · 16.97±0.13[11]

1865 Cerberus (SUR-ber-uh s), provisional designation 1971 UA, is a stony asteroid and near-Earth object of the Apollo group, approximately 1.6 kilometers in diameter. It was discovered on 26 October 1971, by Czech astronomer Luboš Kohoutek at the Hamburger Bergedorf Observatory in Germany and named in 1974.[3]

The S-type asteroid orbits the Sun at a distance of 0.6–1.6 AU once every 1 years and 1 month (410 days). Its orbit has an eccentricity of 0.47 and an inclination of 16° with respect to the ecliptic.[1]

Cerberus is composed of 65% plagioclase and 35% pyroxene,[15] has a rotation period of 6.804 hours, a geometric albedo of 0.220, and passes within 30 gigametres (Gm) of the Earth 7 times from the year 1900 to the year 2100, each time at a distance of 24.4 Gm to 25.7 Gm. It also makes close approaches to Mars and Venus.

The minor planet is named after the figure from Greek mythology, Cerberus, a three-headed dog that guarded the entrance to Hades, the Underworld. His capture marked the last of the twelve labors of Hercules. It is also the name of an extinct constellation, Cerberus, now contained in the eastern part of Hercules.[2] (It should not be confused with Kerberos, a moon of the dwarf planet Pluto.) Naming citation was published before November 1977 (M.P.C. 3758).[16]

References[edit]

  1. ^ a b c d e f g h i j "JPL Small-Body Database Browser: 1865 Cerberus (1971 UA)" (2016-11-14 last obs.). Jet Propulsion Laboratory. Retrieved 12 December 2016. 
  2. ^ a b Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (1865) Cerberus. Springer Berlin Heidelberg. pp. 149–150. ISBN 978-3-540-00238-3. Retrieved 12 December 2016. 
  3. ^ a b "1865 Cerberus (1971 UA)". Minor Planet Center. Retrieved 12 December 2016. 
  4. ^ a b c Pravec, Petr; Harris, Alan W.; Kusnirák, Peter; Galád, Adrián; Hornoch, Kamil (September 2012). "Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations". Icarus. 221 (1): 365–387. Bibcode:2012Icar..221..365P. doi:10.1016/j.icarus.2012.07.026. Retrieved 12 December 2016. 
  5. ^ a b c "LCDB Data for (1865) Cerberus". Asteroid Lightcurve Database (LCDB). Retrieved 12 December 2016. 
  6. ^ a b c Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results" (PDF). The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407Freely accessible. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 12 December 2016. 
  7. ^ a b Harris, A. W.; Young, J. W. (October 1989). "Asteroid lightcurve observations from 1979-1981". Icarus: 314–364. Bibcode:1989Icar...81..314H. doi:10.1016/0019-1035(89)90056-0. ISSN 0019-1035. Retrieved 12 December 2016. 
  8. ^ Durech, J.; Vokrouhlický, D.; Baransky, A. R.; Breiter, S.; Burkhonov, O. A.; Cooney, W.; et al. (November 2012). "Analysis of the rotation period of asteroids (1865) Cerberus, (2100) Ra-Shalom, and (3103) Eger - search for the YORP effect". Astronomy and Astrophysics. 547: 9. Bibcode:2012A&A...547A..10D. doi:10.1051/0004-6361/201219396. Retrieved 12 December 2016. 
  9. ^ Hanus, J.; Delbo', M.; Durech, J.; Alí-Lagoa, V. (August 2015). "Thermophysical modeling of asteroids from WISE thermal infrared data - Significance of the shape model and the pole orientation uncertainties". Icarus. 256: 101–116. arXiv:1504.04199Freely accessible. Bibcode:2015Icar..256..101H. doi:10.1016/j.icarus.2015.04.014. Retrieved 12 December 2016. 
  10. ^ Skiff, Brian A.; Bowell, Edward; Koehn, Bruce W.; Sanborn, Jason J.; McLelland, Kyle P.; Warner, Brian D. (July 2012). "Lowell Observatory Near-Earth Asteroid Photometric Survey (NEAPS) - 2008 May through 2008 December". The Minor Planet Bulletin. 39 (3): 111–130. Bibcode:2012MPBu...39..111S. ISSN 1052-8091. Retrieved 12 December 2016. 
  11. ^ a b Wisniewski, W. Z.; Michalowski, T. M.; Harris, A. W.; McMillan, R. S. (March 1995). "Photoelectric Observations of 125 Asteroids". Abstracts of the Lunar and Planetary Science Conference. Bibcode:1995LPI....26.1511W. Retrieved 12 December 2016. 
  12. ^ Sárneczky, K.; Szabó, Gy.; Kiss, L. L. (June 1999). "CCD observations of 11 faint asteroids". Astronomy and Astrophysics Supplement: 363–368. Bibcode:1999A&AS..137..363S. doi:10.1051/aas:1999251. Retrieved 12 December 2016. 
  13. ^ Thomas, C. A.; Trilling, D. E.; Emery, J. P.; Mueller, M.; Hora, J. L.; Benner, L. A. M.; et al. (September 2011). "ExploreNEOs. V. Average Albedo by Taxonomic Complex in the Near-Earth Asteroid Population". The Astronomical Journal. 142 (3): 12. Bibcode:2011AJ....142...85T. doi:10.1088/0004-6256/142/3/85. Retrieved 12 December 2016. 
  14. ^ Thomas, Cristina A.; Emery, Joshua P.; Trilling, David E.; Delbó, Marco; Hora, Joseph L.; Mueller, Michael (January 2014). "Physical characterization of Warm Spitzer-observed near-Earth objects". Icarus. 228: 217–246. arXiv:1310.2000Freely accessible. Bibcode:2014Icar..228..217T. doi:10.1016/j.icarus.2013.10.004. Retrieved 12 December 2016. 
  15. ^ L.A. Lebofsky; M.L. Nelson. "Compositions of Near-Earth Asteroids" (PDF). University of Arizona. Retrieved 6 November 2015. 
  16. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 12 December 2016. 

External links[edit]