227 Philosophia

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227 Philosophia
Discovery
Discovered by P.P. Henry
Discovery date 12 August 1882
Designations
Named after
Philosophy
A919 AA, 1933 SD1,
1949 OO1
Main belt
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 108.20 yr (39519 d)
Aphelion 3.7673 AU (563.58 Gm)
Perihelion 2.56007 AU (382.981 Gm)
3.16366 AU (473.277 Gm)
Eccentricity 0.19079
5.63 yr (2055.3 d)
16.78 km/s
71.2570°
0° 10m 30.554s / day
Inclination 9.1539°
326.254°
267.020°
Earth MOID 1.57001 AU (234.870 Gm)
Jupiter MOID 1.44273 AU (215.829 Gm)
Jupiter Tisserand parameter 3.156
Physical characteristics
Dimensions 87.31±2.4 km
52.98 h (2.208 d)
0.0768±0.004
9.1

227 Philosophia is a large main-belt asteroid that was discovered by the French astronomer Paul-Pierre Henry on August 12, 1882, in Paris and named after the topic of philosophy. Based upon photometric observations, it has a synodic rotation period of 52.98 ± 0.01 with a brightness variation of 0.15 ± 0.02 in magnitude.[2]

References[edit]

  1. ^ Yeomans, Donald K., "227 Philosophia", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 12 May 2016. 
  2. ^ Pilcher, Frederick; Alkema, Michael S. (July 2014), "Rotation Period Determination for 227 Philosophia", The Minor Planet Bulletin, 41 (3): 188–189, Bibcode:2014MPBu...41..188P. 

External links[edit]