222 Lucia

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222 Lucia
222Lucia (Lightcurve Inversion).png
A three-dimensional model of 222 Lucia based on its light curve.
Discovery
Discovered by Johann Palisa
Discovery date 9 February 1882
Designations
A899 EC, A919 AB
Main belt (Themis)
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 117.10 yr (42769 d)
Aphelion 3.5529 AU (531.51 Gm)
Perihelion 2.7296 AU (408.34 Gm)
3.1412 AU (469.92 Gm)
Eccentricity 0.13105
5.57 yr (2033.5 d)
16.82 km/s
349.267°
0° 10m 37.308s / day
Inclination 2.1494°
80.141°
180.953°
Earth MOID 1.71397 AU (256.406 Gm)
Jupiter MOID 1.50631 AU (225.341 Gm)
Jupiter Tisserand parameter 3.196
Physical characteristics
Dimensions 54.66±3.9 km
7.80 h (0.325 d)
0.1318±0.021
C?
9.13

222 Lucia is a large Themistian asteroid. It was discovered by Johann Palisa on February 9, 1882 in Vienna and named after Lucia, daughter of Austro-Hungarian explorer Graf Wilczek.

This object is spectral C-type and is probably composed of primitive carbonaceous material. Based upon analysis of infrared spectra, it has a diameter of 59.8 ± 0.8 km. This object belongs to the Themis family, which was formed by the break-up of a larger parent body about a billion years ago.[2]

References[edit]

  1. ^ "222 Lucia". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016. 
  2. ^ Lagoa, V. Alí; et al., "5-14 μm Spitzer spectra of Themis family asteroids", Astronomy & Astrophysics, 537: A73, Bibcode:2012A&A...537A..73L, doi:10.1051/0004-6361/201118142. 

External links[edit]