12 Victoria

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12 Victoria
Synodic rotation period
8.6599 h (0.36083 d)[2]
0.167 (calculated)[3]
0.163 ± 0.027[2]
Temperature~178 K
S-type asteroid[2]
8.68[5] to 12.82
7.30[2]
0.188" to 0.04"

Victoria (

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.[6]

This minor planet was discovered by English astronomer

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.[7]

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 𜻅 ().[8][9]

12 Victoria Earth approach on 26 June 2028[10]
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 ≈01:57 0.877 
LD
)
1.88 AU (281 million km; 175 million mi) 6.4 23.7 ± 7 km 166.9°
light-curve
inversion

See also

Notes

  1. ^ Flattening derived from the maximum aspect ratio (c/a): , where (c/a) = 0.69±0.03.[3]

References

  1. ^ Noah Webster (1884) A Practical Dictionary of the English Language
  2. ^ a b c d e f "JPL Small-Body Database Browser: 12 Victoria" (2023-05-15 last obs). Retrieved 18 September 2023.
  3. ^ a b c d e P. Vernazza et al. (2021) VLT/SPHERE imaging survey of the largest main-belt asteroids: Final results and synthesis. Astronomy & Astrophysics 54, A56
  4. ^
    S2CID 119226456
    . See Table 1.
  5. ^ "AstDys (12) Victoria Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 26 June 2010.
  6. ^ Other reports of asteroid/TNO companions
  7. .
  8. ^ Bala, Gavin Jared; Miller, Kirk (18 September 2023). "Unicode request for historical asteroid symbols" (PDF). unicode.org. Unicode. Retrieved 26 September 2023.
  9. ^ Unicode. "Proposed New Characters: The Pipeline". unicode.org. The Unicode Consortium. Retrieved 6 November 2023.
  10. ^ "Horizons Batch for 12 Victoria on 2028-Jun-26" (Closest Earth approach occurs when deldot flips from negative to positive). JPL Horizons. Retrieved 18 September 2023.

External links