1887 Virton

Stony main-belt asteroid October 2019 yes 1887 Virton #D6D6D6 5 October 1950 S. Arend Uccle Obs. (1887) Virton 1950 TD1934 RG1944 OE1950 RG1950 TQ 11952 BF 11960 QC1970 OA Virton (Belgian town) main-beltEos 4 September 2017 (JD 2458000.5) 0 66.44 yr (24,266 days) 3.3481 AU 2.6606 AU 3.0043 AU 0.1144 5.21 yr (1,902 days) 295.94° 0.1893 ms / day 9.6221° 348.58° 32.733° 20.848 0.26021.40 km (calculated)22.174 0.605 km23.43 0.54 km 0.105 0.0050.1085 0.01580.124 0.0150.14 (assumed) S 11.111.3 1887 Virton, provisional designation 1950 TD, is a stony Eoan asteroid from the outer region of the asteroid belt, approximately 21 kilometers in diameter. It was discovered by Belgian astronomer Sylvain Arend at the Royal Observatory of Belgium in Uccle on 5 October 1950, and named after the Belgian town of Virton. Orbit and classification Virton is a member of the Eos family. It orbits the Sun in the outer main-belt at a distance of 2.7–3.3 AU once every 5 years and 3 months (1,902 days). Its orbit has an eccentricity of 0.11 and an inclination of 10° with respect to the ecliptic. The asteroid's observation arc begins with its official discovery observation at Uccle, as previous observations at Johannesburg, Crimea-Simeis and Turku Observatory remained unused. Physical characteristics The asteroid has been characterized as a common stony S-type asteroid. Diameter and albedo According to the surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Virton measures between 20.8 and 23.43 kilometers in diameter and its surface has an albedo between 0.105 and 0.124, respectively. The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.14 and calculates a diameter of 21.4 kilometers with an absolute magnitude of 11.1. Lightcurves As of 2017, Virtons rotation period and shape remain unknown. Naming This minor planet was named after the town and capital district, Virton, in the southernmost part Belgium. It is located very close to Robelmont, Arend's birthplace (also see 1145 Robelmonte). The official naming citation was published by the Minor Planet Center on 22 September 1983 (M.P.C. 8151). References 30em 2017-03-13 last obs. JPL Small-Body Database Browser: 1887 Virton (1950 TD) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001887 Jet Propulsion Laboratory 9 June 2017 Dictionary of Minor Planet Names – (1887) Virton Schmadel Lutz D. Springer Berlin Heidelberg 151 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1888 (1887) Virton 1887 Virton (1950 TD) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1887 11 December 2016 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 11 December 2016 6 Joseph R. Masiero T. Grav A. K. Mainzer C. R. Nugent J. M. Bauer R. Stevenson S. Sonnett August 2014 Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos The Astrophysical Journal 791 2 11 2014ApJ...791..121M 10.1088/0004-637X/791/2/121 1406.6645 1887 11 December 2016 6 A. Mainzer T. Grav J. Masiero E. Hand J. Bauer D. Tholen R. S. McMillan T. Spahr R. M. Cutri E. Wright J. Watkins W. Mo C. Maleszewski November 2011 NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results The Astrophysical Journal 741 2 25 2011ApJ...741...90M 10.1088/0004-637X/741/2/90 1109.6407 6 Fumihiko Usui Daisuke Kuroda Thomas G. Müller Sunao Hasegawa Masateru Ishiguro Takafumi Ootsubo Daisuke Ishihara Hirokazu Kataza Satoshi Takita Shinki Oyabu Munetaka Ueno Hideo Matsuhara Takashi Onaka October 2011 Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey Publications of the Astronomical Society of Japan 63 5 1117–1138 2011PASJ...63.1117U 10.1093/pasj/63.5.1117 free (online, AcuA catalog p. 153) External links 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/20160729213840/http://obswww.unige.ch/~behrend/page_cou.html 29 July 2016 – Observatoire de Genève, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 1887 1886 Lowell 1887 1888 Zu Chong-Zhi 001887 Category:Discoveries by Sylvain Arend Category:Named minor planets 19501005