167 Urda

Main-belt asteroid October 2019 yes 167 Urda 167Urda (Lightcurve Inversion).png A three-dimensional model of 167 Urda based on its lightcurve #D6D6D6 C. H. F. Peters Clinton, New York 28 August 1876 (167) Urda ' ɜːr d ə A876 QA; 1899 KC;1905 QA; 1906 WA Urd main belt (Koronis asteroid family) 31 July 2016 (JD 2457600.5) 2.8538511 AU Gm on 2.7493497 AU Gm on 2.9583526 AU Gm on on 0.0366177 4.82 yr (1760.9 d) 2.212408° 166.21859° 133.03586° 37.607175° 39.94 1.9 km 13.07 h d on on S 9.1 0.2230 0.023 0.2044359 ms / day 132.01 yr (48218 d) 0 1.73392 AU Gm on 2.10867 AU Gm on 3.302 167 Urda is a main-belt asteroid that was discovered by German-American astronomer Christian Heinrich Friedrich Peters on August 28, 1876, in Clinton, New York, and named after Urd, one of the Norns in Norse mythology. In 1905, Austrian astronomer Johann Palisa showed that the asteroid varied in brightness. Photometric observations of this asteroid at the Palmer Divide Observatory in Colorado Springs, Colorado, during 2007–8 gave a light curve with a period of 13.06133 ± 0.00002 hours. This S-type asteroid is a member of the Koronis family of asteroids that share similar orbital elements. In 2002, a diameter estimate of 37.93 ± 3.17 km was obtained from the Midcourse Space Experiment observations, with an albedo of 0.2523 ± 0.0448. A stellar occultation by Urda was observed from Japan on July 23, 2001.http://mpocc.astro.cz/world/mpocc1.txt Observed Minor Planet Occultation Events - Asteroidal Occultations 2018-10-14 References Donald K. Yeomans 167 Urda JPL Small-Body Database Browser NASA Jet Propulsion Laboratory https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=167 12 May 2016 . Patrick Moore Patrick Moore Robin Rees Patrick Moore's Data Book of Astronomy Cambridge University Press 2nd 2011 164–165 https://books.google.com/books?id=2FNfjWKBZx8C&pg=PA165 . Warner Brian D. Durech Josef Fauerbach Michael Marks Scott 1 Shape and Spin Models for Four Asteroids The Minor Planet Bulletin 35 4 167–171 October 2008 2008MPBu...35..167W . Maddrill James D. Variable Asteroid (167) Urda Publications of the Astronomical Society of the Pacific 17 105 190–192 December 1905 40691277 1905PASP...17..186. 10.1086/121648 . free Tedesco Edward F. Egan Michael P. Price Stephan D. 1 The Midcourse Space Experiment Infrared Minor Planet Survey The Astronomical Journal 124 124 583–591 July 2002 10.1086/340960 2002AJ....124..583T . free External links Lightcurve plot of 167 Urda, Palmer Divide Observatory, B. D. Warner (2007) Asteroid Lightcurve Database (LCDB), query form (info https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html 16 December 2017 ) Dictionary of Minor Planet Names, Google books Asteroids and comets rotation curves, CdR https://web.archive.org/web/20241208174218/http://obswww.unige.ch/~behrend/page_cou.html 8 December 2024 – Observatoire de Genève, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 167 166 Rhodope 167 168 Sibylla Category:Koronis asteroids Urda Urda Category:S-type asteroids (Tholen) Category:Sk-type asteroids (SMASS) 18760828 Category:Objects observed by stellar occultation