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1865 Cerberus

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For the moon of Pluto, see Kerberos (moon).
1865 Cerberus
Light-curve-based 3-D model of 1865 Cerberus
Discovery [1]
Discovered byL. Kohoutek
Discovery siteBergedorf Obs.
Discovery date26 October 1971
Designations
1865 Cerberus
Named after
Cerberus
(Greek mythology)[2]
1971 UA
Apollo, NEO
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc39.81 yr (14539 days)
Aphelion1.5844 AU (237.02 Gm)
Perihelion0.57568 AU (86.121 Gm)
1.0800 AU (161.57 Gm)
Eccentricity0.46697
1.12 yr (409.97 d)
38.341°
0° 52m 41.232s / day
Inclination16.095°
212.93°
325.24°
Earth MOID0.156199 AU (23.3670 Gm)
Jupiter MOID3.41049 AU (510.202 Gm)
TJupiter5.592
Physical characteristics
Dimensions1.2 km
1.608 km[3]
1.611±0.013 km[4]
0.6 km
6.8039 h (0.28350 d) h[1]
6.800±0.006 h[5]
6.810±0.003 h[6]
6.87 h[7]
6.81 h[a]
6.804±0.003 h[8]
6.80328±0.00001 h[9]
6.803286±0.000005 h[10]
0.22
0.50±0.29[11]
0.1118[3]
0.136±0.021[4]
B–V = 0.790
U–B = 0.442
S (Tholen), S (SMASS)
S [12]
16.84

1865 Cerberus, provisional designation 1971 UA, is a stony asteroid, classified as a near-Earth object, about 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.[13]

The S-type asteroid orbits the Sun at a distance of 0.6–1.6 AU once every 1.12 years (410 days). It has a rotation period of 6.804 hours and a geometric albedo of 0.220.

Cerberus is composed of 65% plagioclase and 35% pyroxene,[14] 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 asteroid 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.

References

  1. ^ Pravec-1999web, summary figures at www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1865%7CCerberus
  1. ^ a b c "JPL Small-Body Database Browser: 1865 Cerberus (1971 UA)" (2011-08-16 last obs.). Jet Propulsion Laboratory. Retrieved 20 April 2016.
  2. ^ a b Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1865) Cerberus. Springer Berlin Heidelberg. pp. 149–150. ISBN 978-3-540-29925-7. Retrieved November 2015. {{cite book}}: Check date values in: |accessdate= (help)
  3. ^ a b 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 November 2015. {{cite journal}}: Check date values in: |access-date= (help)
  4. ^ a b 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 November 2015. {{cite journal}}: Check date values in: |access-date= (help)
  5. ^ 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 November 2015. {{cite journal}}: Check date values in: |access-date= (help)
  6. ^ 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 November 2015. {{cite journal}}: Check date values in: |access-date= (help)
  7. ^ Sárneczky, K.; Szabó, Gy.; Kiss, L. L. (June 1999). "CCD observations of 11 faint asteroids". Astronomy and Astrophysics Supplement. Bibcode:1999A&AS..137..363S. doi:10.1051/aas:1999251. Retrieved November 2015. {{cite journal}}: Check date values in: |access-date= (help)
  8. ^ 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 November 2015. {{cite journal}}: Check date values in: |access-date= (help)
  9. ^ 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 & Astrophysics. 547: 9. arXiv:1210.2219. Bibcode:2012A&A...547A..10D. doi:10.1051/0004-6361/201219396. Retrieved November 2015. {{cite journal}}: Check date values in: |access-date= (help)
  10. ^ 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:1504.04199. Bibcode:2015Icar..256..101H. doi:10.1016/j.icarus.2015.04.014. Retrieved November 2015. {{cite journal}}: Check date values in: |access-date= (help)
  11. ^ 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 November 2015. {{cite journal}}: Check date values in: |access-date= (help)
  12. ^ "LCDB Data for (1865) Cerberus". Asteroid Lightcurve Database (LCDB). Retrieved November 2015. {{cite web}}: Check date values in: |accessdate= (help)
  13. ^ "1865 Cerberus (1971 UA)". Minor Planet Center. Retrieved November 2015. {{cite web}}: Check date values in: |accessdate= (help)
  14. ^ L.A. Lebofsky; M.L. Nelson. "Compositions of Near-Earth Asteroids" (PDF). University of Arizona. Retrieved November 2015. {{cite web}}: Check date values in: |access-date= (help)
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