222 Lucia

222 Lucia

A three-dimensional model of 222 Lucia based on its light curve.
Discovery
Discovered by	Johann Palisa
Discovery date	February 9, 1882
Designations
Alternative names	A899 EC, A919 AB
Minor planet category	Main belt (Themis)
Orbital characteristics
Epoch 30 January 2005 (JD 2453400.5)
Aphelion	3.573 AU
Perihelion	2.699 AU
Semi-major axis	3.136 AU
Eccentricity	0.139
Orbital period	2028.512 d (5.55 yr)
Average orbital speed	16.82 km/s
Mean anomaly	327.086°
Inclination	2.158°
Longitude of ascending node	80.328°
Argument of perihelion	178.579°
Physical characteristics
Dimensions	55.0 km
Rotation period	8 h
Albedo	0.13
Spectral type	C?
Absolute magnitude (H)	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.^[1]

References

1. 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

• The Asteroid Orbital Elements Database
• Minor Planet Discovery Circumstances
• Asteroid Lightcurve Data File
• 222 Lucia at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters