224 Oceana

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224 Oceana
Discovered by Johann Palisa
Discovery date March 30, 1882
Named after Pacific Ocean
Alternative names A899 EA, 1933 HO
Minor planet category Main belt
Orbital characteristics
Epoch 30 January 2005 (JD 2453400.5)
Aphelion 413.786 Gm (2.766 AU)
Perihelion 377.661 Gm (2.525 AU)
Semi-major axis 395.723 Gm (2.645 AU)
Eccentricity 0.046
Orbital period 1571.409 d (4.3 a)
Average orbital speed 18.31 km/s
Mean anomaly 119.434°
Inclination 5.838°
Longitude of ascending node 353.03°
Argument of perihelion 284.121°
Physical characteristics
Dimensions 62.0 km
Rotation period 9.401[1] h
Albedo 0.169
Spectral type M
Absolute magnitude (H) 8.59

224 Oceana is a sizeable main belt asteroid that was discovered byAustrian astronomer Johann Palisa on March 30, 1882 in Vienna. It was named after the Pacific Ocean. Based upon its spectrum, it is classified as an M-type asteroid, but is not metallic.

A light curve generated from photometric observations of this asteroid at Pulkovo Observatory show a rotation period of 9.401 ± 0.001 hours and a brightness variation of 0.09 ± 0.01 in magnitude.[1]

224 Oceana was one of five minor planets included in the 1993 study, Transition Comets -- UV Search for OH Emissions in Asteroids, which was research involving amateur astronomers who were permitted to make use of the Hubble Space Telescope.


  1. ^ a b Pilcher, Frederick (October 2011), "Rotation Period Determinations for 11 Parthenope, 38 Leda, 111 Ate 194 Prokne, 217 Eudora, and 224 Oceana", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers 38 (4): 183-185, Bibcode:2011MPBu...38..183P. 

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