28 Bellona
Bellona (apmag 11.8) near a magnitude 12 star, next to Abell 2670[1]
Discovery
Discovered byR. Luther
Discovery date1 March 1854
Designations
(28) Bellona
Pronunciation/bɛˈloʊnə/[2]
Named after
Bellona
1951 CC2
Main belt
AdjectivesBellonian /bɛˈloʊniən/[2]
Symbol (historical)
Orbital characteristics
Epoch Sept 30, 2012 (JD 2456200.5)
Aphelion477.240 Gm (3.196 AU)
Perihelion353.977 Gm (2.358 AU)
415.608 Gm (2.777 AU)
Eccentricity0.151
1690.19 d (4.63 a)
121.574°
Inclination9.430°
144.330°
344.461°
Physical characteristics
Dimensions97 ± 11 km[3]
120.9 ± 3.4 km (IRAS)[4]
108.10 ± 11.49 km[5]
Mass(2.62±0.15)×1018 kg[5]
Mean density
3.95 ± 1.28 g/cm3[5]
15.706 h[4][6]
0.1763[4][7]
S [4]
7.09[4]

    Bellona (minor planet designation: 28 Bellona) is a large main-belt asteroid. It was discovered by German astronomer R. Luther on March 1, 1854, and named after Bellōna, the Roman goddess of war; the name was chosen to mark the beginning of the Crimean War. Its historical symbol was Bellona's whip and spear; it is in the pipeline for Unicode 17.0 as U+1CECE 𜻎 ().[8][9]

    Bellona is a stony (S-type) asteroid with a cross-section size of around 100–120 km. 28 Bellona is orbiting the Sun with a period of 4.63 years.

    Bellona has been studied by radar.[10] Photometric observations of this asteroid at the Palmer Divide Observatory in Colorado Springs, Colorado in 2007 gave a light curve with a period of 15.707 ± 0.002 hours and a brightness variation of 0.27 ± 0.03 in magnitude. This report is in close agreement with a period estimate of 15.695 hours reported in 1983, and rejects a longer period of 16.523 hours reported in 1979.[11]

    References

    1. ↑ "Astrometry.net job 1005148". Astrometry.net. Retrieved 6 February 2015.
    2. 1 2 "Bellona". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
    3. ↑ Ďurech, Josef; Kaasalainen, Mikko; Herald, David; Dunham, David; Timerson, Brad; Hanuš, Josef; et al. (2011). "Combining asteroid models derived by lightcurve inversion with asteroidal occultation silhouettes" (PDF). Icarus. 214 (2): 652–670. arXiv:1104.4227. Bibcode:2011Icar..214..652D. doi:10.1016/j.icarus.2011.03.016. S2CID 119271216. Archived from the original (PDF) on 3 March 2016. Retrieved 26 January 2012.
    4. 1 2 3 4 5 "JPL Small-Body Database Browser: 28 Bellona". Jet Propulsion Laboratory. Retrieved 28 January 2012. 2012-01-02 last obs
    5. 1 2 3 Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73 (1): 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009, S2CID 119226456. See Table 1.
    6. ↑ "Archived copy". Archived from the original on 13 September 2006. Retrieved 12 August 2006.{{cite web}}: CS1 maint: archived copy as title (link)
    7. ↑ "Archived copy". Archived from the original on 22 July 2012. Retrieved 12 August 2006.{{cite web}}: CS1 maint: archived copy as title (link)
    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. ↑ "Radar-Detected Asteroids and Comets". NASA/JPL Asteroid Radar Research. Retrieved 30 October 2011.
    11. ↑ Warner, Brian D. (December 2007), "Asteroid Lightcurve Analysis at the Palmer Divide Observatory - March-May 2007", The Minor Planet Bulletin, 34 (4): 104–107, Bibcode:2007MPBu...34..104W.
    This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.