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28 Bellona

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28 Bellona
Bellona (apmag 11.8) near a mag 12 star and background galaxies
Discovery
Discovered byR. Luther
Discovery dateMarch 1, 1854
Designations
Pronunciation/bɛˈlnə/ be-LOH-nə
1951 CC2
Main belt
Symbol
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)
17.77 km/s
121.574°
Inclination9.430°
144.330°
344.461°
Physical characteristics
Dimensions97 ± 11 km[1]
120.9 ± 3.4 km (IRAS)[2]
Mass1.9×1018? kg (assumed)
Mean density
2.0? g/cm³
0.0338? m/s²
0.0639? km/s
15.706 h[2][3]
Albedo0.1763[2][4]
Temperature~163 K
Spectral type
S[2]
7.09[2]

28 Bellona is a large main-belt asteroid. It was discovered by 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.

Bellona has been studied by radar.[5]

References

  1. ^ Ďurech, Josef (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. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
  2. ^ a b c d e "JPL Small-Body Database Browser: 28 Bellona". Jet Propulsion Laboratory. 2012-01-02 last obs. Retrieved 2012-01-28. {{cite web}}: Check date values in: |date= (help)
  3. ^ http://www.psi.edu/pds/asteroid/EAR_A_5_DDR_DERIVED_LIGHTCURVE_V8_0/data/lc.tab
  4. ^ http://www.psi.edu/pds/asteroid/EAR_A_5_DDR_ALBEDOS_V1_1/data/albedos.tab
  5. ^ "Radar-Detected Asteroids and Comets". NASA/JPL Asteroid Radar Research. Retrieved 2011-10-30.