12 Victoria

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12 Victoria 12 Victoria symbol.svg
Discovery
Discovered by John Russell Hind
Discovery date September 13, 1850
Designations
Pronunciation /vɪkˈtɔəriə/
Named after
Victoria (Latin: Uictōria)
none
Minor planet category Main belt
Orbital characteristics[1]
Epoch July 14, 2004 (JD 2453200.5)
Aphelion 426.234 Gm (2.849 AU)
Perihelion 272.097 Gm (1.819 AU)
349.166 Gm (2.334 AU)
Eccentricity 0.221
1302.439 d (3.57 a)
19.50 km/s
80.591°
Inclination 8.363°
235.547°
69.747°
Physical characteristics
Dimensions 112.8 ± 3.1 km (IRAS)[1]
124.09 ± 8.31[2] km
Mass (2.45 ± 0.46) × 1018[2] kg
Mean density
2.45 ± 0.67[2] g/cm3
0.0315 m/s²
0.0596 km/s
0.3608 d (8.6599 h)[1]
Albedo 0.177 (geometric)[1]
Temperature ~178 K
Spectral type
S-type asteroid[1]
8.68[3] to 12.82
7.24[1]
0.188" to 0.04"

12 Victoria is a large main-belt asteroid.

It was discovered by J. R. Hind on September 13, 1850.

Victoria is officially named after the Roman goddess of victory, but the name also honours Queen Victoria. The goddess Victoria (Nike for the Greeks) was the daughter of Styx by the Titan Pallas. The coincidence with the name of the then-reigning queen caused quite a controversy at the time, and B. A. Gould, editor of the prestigious Astronomical Journal, adopted the alternate name Clio (now used by 84 Klio), proposed by the discoverer. However, W. C. Bond, of the Harvard College Observatory, then the highest authority on astronomy in America, held that the mythological condition was fulfilled and the name therefore acceptable, and his opinion eventually prevailed.[4]

Radar and speckle interferometry observations show that the shape of Victoria is elongated, and it is suspected to be a binary asteroid.[5]

Victoria has only ever been observed to occult a star thrice since its discovery.

References[edit]

  1. ^ a b c d e f "JPL Small-Body Database Browser: 12 Victoria". 2008-11-06 last obs. Retrieved 2008-11-30. 
  2. ^ a b c Carry, B. (December 2012). "Density of asteroids". Planetary and Space Science 73: 98–118. arXiv:1203.4336. Bibcode:2012P&SS...73...98C. doi:10.1016/j.pss.2012.03.009.  See Table 1.
  3. ^ "AstDys (12) Victoria Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 2010-06-26. 
  4. ^ Schmadel, Lutz D. (2003). Dictionary of minor planet names, Volume 1 (5th ed.). Berlin Heidelberg New York: Springer-Verlag. p. 16. ISBN 3-540-00238-3. 
  5. ^ Other reports of asteroid/TNO companions

External links[edit]