From Wikipedia, the free encyclopedia
1865 Cerberus 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 , Germany, and given the provisional designation 1971 UA . It was named for
Cerberus from Greek mythology.
[2]
[3]
Orbit and classification
Cerberus 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]
The
Apollo asteroid has an Earth
minimum orbital intersection distance of 0.1567 AU (23,400,000 km), which corresponds to 61
lunar distances . It 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.
[1]
Physical characteristics
In the
Tholen and
SMASS taxonomy, Cerberus is a common stony
S-type asteroid ,
[1] composed of 65%
plagioclase and 35%
pyroxene .
[19] It has a
rotation period of 6.804 hours and a
geometric albedo of 0.220.
[1]
[7] With a maximum lightcurve range of 2.3,
[12] Cerberus may be cigar shaped like
1I/ʻOumuamua .
Naming
This
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.) The official
naming citation was published by the
Minor Planet Center on 20 December 1974 (
M.P.C. 3758 ).
[20]
References
^
a
b
c
d
e
f
g
h
i
j
k
l
m
"JPL Small-Body Database Browser: 1865 Cerberus (1971 UA)" (2016-11-14 last obs.).
Jet Propulsion Laboratory . Retrieved 9 June 2017 .
^
a
b
c Schmadel, Lutz D. (2007). "(1865) Cerberus". Dictionary of Minor Planet Names – (1865) Cerberus .
Springer Berlin Heidelberg . pp. 149–150.
doi :
10.1007/978-3-540-29925-7_1866 .
ISBN
978-3-540-00238-3 .
^
a
b
"1865 Cerberus (1971 UA)" . Minor Planet Center . Retrieved 12 December 2016 .
^ R.W. Chapman (1939) Adjectives from Proper Names , Clarendon Press, Oxford, p. 56
^
"Cerberean" .
Oxford English Dictionary (Online ed.).
Oxford University Press . (Subscription or
participating institution membership required.)
^
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 .
^
a
b
c
d
"LCDB Data for (1865) Cerberus" . Asteroid Lightcurve Database (LCDB). Retrieved 12 December 2016 .
^
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". The Astrophysical Journal . 741 (2): 25.
arXiv :
1109.6407 .
Bibcode :
2011ApJ...741...90M .
doi :
10.1088/0004-637X/741/2/90 .
^
a
b Harris, A. W.; Young, J. W. (October 1989).
"Asteroid lightcurve observations from 1979-1981" . Icarus . 81 (2): 314–364.
Bibcode :
1989Icar...81..314H .
doi :
10.1016/0019-1035(89)90056-0 .
ISSN
0019-1035 . Retrieved 12 December 2016 .
^ 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.
arXiv :
1210.2219 .
Bibcode :
2012A&A...547A..10D .
doi :
10.1051/0004-6361/201219396 . Retrieved 12 December 2016 .
^ 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 12 December 2016 .
^
a
b
c Detail: "Pravec2008web" at LCDB Data for (1865) Cerberus
^ 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 .
^ Detail: "Pravec1999web" at LCDB Data for (1865) Cerberus
^
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 . 26 : 1511.
Bibcode :
1995LPI....26.1511W . Retrieved 12 December 2016 .
^ Sárneczky, K.; Szabó, Gy.; Kiss, L. L. (June 1999).
"CCD observations of 11 faint asteroids" . Astronomy and Astrophysics Supplement . 137 (2): 363–368.
Bibcode :
1999A&AS..137..363S .
doi :
10.1051/aas:1999251 . Retrieved 12 December 2016 .
^ 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 .
^ 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 :
1310.2000 .
Bibcode :
2014Icar..228..217T .
doi :
10.1016/j.icarus.2013.10.004 . Retrieved 12 December 2016 .
^ L.A. Lebofsky; M.L. Nelson.
"Compositions of Near-Earth Asteroids" (PDF) .
University of Arizona . Retrieved 6 November 2015 .
^ Schmadel, Lutz D. (2009). "Appendix – Publication Dates of the MPCs".
Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008) . Springer Berlin Heidelberg. p.
221 .
doi :
10.1007/978-3-642-01965-4 .
ISBN
978-3-642-01964-7 .
External links