12 Victoria

12 Victoria
Discovery
Discovered byJohn Russell Hind
Discovery date13 September 1850
Designations
(12) Victoria
Pronunciation/vɪkˈtɔːriə/
Named after
Victoria (Latin: Uictōria)
Main belt
AdjectivesVictorian
Symbol (historical)
Orbital characteristics
Epoch 17.0 October 2024
(JD 2460600.5)
Uncertainty parameter 0
Observation arc173.98 yr
Aphelion2.85 AU (426 million km)
Perihelion1.82 AU (272 million km)
2.33 AU (349 million km)
Eccentricity0.22013
3.57 yr (1302.6 d)
19.50 km/s
326.4°
0° 16m 34.914s / day
Inclination8.374°
235.36°
15 February 2025
69.55°
Earth MOID0.83 AU (124 million km)
Jupiter MOID2.42 AU (362 million km)
TJupiter3.522
Physical characteristics
Dimensions140 km × 116 km × 96 km4 km × 3 km × 3 km)
116±2 km
115.087 ± 1.199 km
124.09 ± 8.31 km
Flattening0.31
Mass(2.7±1.3)×1018 kg
(2.45±0.46)×1018 kg
Mean density
3.4±1.7 g/cm3
2.45±0.67 g/cm3
Equatorial surface gravity
0.0315 m/s²
Equatorial escape velocity
0.0596 km/s
8.6599 h (0.36083 d)
8.660345±0.000005 h
110°
−27°±
177°±
0.167 (calculated)
0.163 ± 0.027
Temperature~178 K
S (Tholen)/L (SMASS)
A
L
8.68 to 12.82
7.30
7.24
0.188" to 0.04"

    12 Victoria is a large main-belt asteroid, orbiting the Sun with a period of 3.56 years and an eccentricity of 0.221. It is a stony (S-type) asteroid, about 112–124 km across with an albedo of 0.18 and a rotation period of 8.66 hours. Victoria has been observed to occult a star three times since its discovery. Radar and speckle interferometry observations show that the shape of Victoria is elongated, and it is suspected to be a binary asteroid, with a moon of irregular shape.

    This minor planet was discovered by English astronomer 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.

    The historical symbol for Victoria was a star with a branch of laurel. It is in the pipeline for Unicode 17.0 as U+1CEC5 𜻅 ().

    12 Victoria Earth approach on 26 June 2028
    Date and time of
    closest approach
    Earth distance
    (AU)
    Sun distance
    (AU)
    Velocity
    relative to Earth
    (km/s)
    Velocity
    relative to Sun
    (km/s)
    Uncertainty
    region
    (3-sigma)
    Solar
    elongation
    26 June 2028 ≈01:570.877 AU (131.2 million km; 81.5 million mi; 341 LD)1.88 AU (281 million km; 175 million mi)6.423.7± 7 km166.9°