72 Feronia

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72 Feronia
72Feronia (Lightcurve Inversion).png
A three-dimensional model of 72 Feronia based on its light curve.
Discovery
Discovered by Christian Heinrich Friedrich Peters
Discovery date May 29, 1861
Designations
MPC designation (72) Feronia
Pronunciation /fəˈrniə/ fə-ROH-nee-ə
Main belt
Orbital characteristics
Epoch December 31, 2006 (JD 2454100.5)
Aphelion 2.539 AU (379.8 Gm)
Perihelion 1.993 AU (298.1 Gm)
2.266 AU (339.0 Gm)
Eccentricity 0.121
1,246.123 days (3.41 a)
146.950°
Inclination 5.417°
208.137°
102.608°
Physical characteristics
Dimensions 83.95±4.02 km[1]
Mass (3.32±8.49)×1018 kg[1]
Mean density
10.71±27.44 g/cm3[1]
8.09068 h[2]
287 or 102[2]
−39 or −55[2]
0.063[3]
TDG[4]
8.94

72 Feronia (/fəˈrniə/ fə-ROH-nee-ə) is a quite large and dark main belt asteroid. It was the first asteroid discovery by C. H. F. Peters, on May 29, 1861,[5] from Hamilton College, New York State. It was initially thought that Peters had merely seen the already known asteroid 66 Maja, but T.H. Safford showed that it was a new body. Safford named it after Feronia, a Roman fertility goddess.[6]

The asteroid has an estimated rotation period of 8.09068 h. Hanuš et al. (2013) gives two possible solutions for the pole in ecliptic coordinates: (λ1, β1) = (287°, −39°) or (λ1, β1) = (102°, −55°). The estimated mass of 72 Feronia, and hence the density, has a large margin of error.[2]

References[edit]

  1. ^ a b c Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73, pp. 98–118, arXiv:1203.4336Freely accessible, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009.  See Table 1.
  2. ^ a b c d Hanuš, J.; et al. (September 2013), "Sizes of main-belt asteroids by combining shape models and Keck adaptive optics observations", Icarus, 226 (1): 1045−1057, arXiv:1308.0446Freely accessible, Bibcode:2013Icar..226.1045H, doi:10.1016/j.icarus.2013.07.023. 
  3. ^ Asteroid Data Sets Archived 2010-01-17 at WebCite
  4. ^ *JPL Small-Body Database Browser
  5. ^ Sheehan, William (1999), "Christian Heinrich Friedrich Peters", Biographical Memoirs, 76, National Academies Press, p. 289, ISBN 0309064341. 
  6. ^ Schmadel, Lutz (2003). Dictionary of minor planet names (fifth ed.). Germany: Springer. p. 22. ISBN 3-540-00238-3. Retrieved 2008-12-31. 

External links[edit]