181 Eucharis

Main-belt asteroid October 2019 yes #D6D6D6 181 Eucharis Pablo Cottenot Орбита астероида 181.png Orbital diagram 2 February 1878 (181) Eucharis A878 CB; 1906 GA ' j uː k ə r ɪ seucharis Main belt 31 July 2016 (JD 2457600.5) 3.12958 AU Gm on 2.49280 AU Gm on 3.7664 AU Gm on on 0.20347 5.54 yr (2022.2 d) 18.890° 143.224° 318.943° 32.3207° 16.64 km/s 106.66 2.2 km 52.23 h d on on S (Tholen)Xk (Bus) 7.84 0.1135 0.0054 0.178022 ms / day 123.63 yr (45157 d) 0 1.53686 AU Gm on 1.47086 AU Gm on 3.099 Eucharis 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 nymph from the 17th-century novel Les Aventures de Télémaque. It is orbiting the Sun at a distance of 3.13 AU with a moderate eccentricity of 0.20 and an orbital period of 5.54 years. 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. Based on infrared measurements, it has a diameter of 116 km. 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. In the case of 181 Eucharis, the orbital plane is inclined at an angle of 18.9° to the plane of the ecliptic. References Donald K. Yeomans 181 Eucharis JPL Small-Body Database Browser NASA Jet Propulsion Laboratory https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=181 12 May 2016 . Numbered Minor Planets 1–5000 Discovery Circumstances IAU Minor Planet center https://www.minorplanetcenter.net/iau/lists/NumberedMPs000001.html 2013-04-07 . Novaković Bojan Cellino Alberto Knežević Zoran 1 Families among high-inclination asteroids Icarus 216 1 69–81 November 2011 10.1016/j.icarus.2011.08.016 2011Icar..216...69N . 1108.3740 Stephens Robert D. Long Period Asteroids Observed from GMARS and Santana Observatories The Minor Planet Bulletin 35 1 21–22 March 2008 2008MPBu...35...21S . DeMeo Francesca E. Binzel Richard P. Slivan Stephen M. Bus Schelte J. 1 An extension of the Bus asteroid taxonomy into the near-infrared Icarus 202 1 160–180 July 2009 10.1016/j.icarus.2009.02.005 2009Icar..202..160D http://www.tara.tcd.ie/bitstream/2262/43276/1/PEER_stage2_10.1016%252Fj.icarus.2009.02.005.pdf 2013-04-08 . dead https://web.archive.org/web/20140317200310/https://www.tara.tcd.ie/bitstream/2262/43276/1/PEER_stage2_10.1016/j.icarus.2009.02.005.pdf 2014-03-17 See appendix A. External links 181 180 Garumna 181 182 Elsa Category:Background asteroids Eucharis Eucharis Category:S-type asteroids (Tholen) Category:Xk-type asteroids (SMASS) 18780202