Discovered by Pablo Cottenot Alternative names A906 GA Observation arc 123.63 yr (45157 d) Discovered 2 February 1878 Orbits Sun Discovery site Marseille Observatory | Discovery date 2 February 1878 Minor planet category Main belt Aphelion 3.7664 AU (563.45 Gm) Absolute magnitude 7.84 Discoverer Pablo Cottenot Asteroid group Asteroid belt | |
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181 Eucharis is a large, slowly rotating main-belt asteroid that was discovered by French astronomer Pablo Cottenot on February 2, 1878, from Marseille Observatory. It was his only asteroid discovery. This object was named after Eucharis, a Greek nymph.
In the Tholen classification system, it is categorized as a stony S-type asteroid, while the Bus asteroid taxonomy system lists it as an Xk asteroid. Photometric observations of this asteroid at the Goat Mountain Astronomical Research Station in Rancho Cucamonga, California during 2007 gave a light curve with a leisurely rotation period of 52.23 ± 0.05 hours.
This object is the namesake of a family of 149–778 asteroids that share similar spectral properties and orbital elements; hence they may have arisen from the same collisional event. All members have a relatively high orbital inclination.