1856 Růžena

Stony main-belt asteroid October 2019 yes 1856 Růžena #D6D6D6 8 October 1969 L. Chernykh Crimean Astrophysical Obs. (1856) Růžena 1969 TW 11941 FP1971 DL 1 Růžena Petrovicova(Kleť Observatory) main-belt(inner) 4 September 2017 (JD 2458000.5) 0 47.47 yr (17,339 days) 2.4146 AU 2.0586 AU 2.2366 AU 0.0796 3.34 yr (1,222 days) 251.86° 0.2947 ms / day 4.7421° 185.88° 56.000° 6.620 0.252 km 0.335 0.033 SMASS = S 12.8 1856 Růžena, provisional designation 1969 TW 1, is a stony asteroid from the inner regions of the asteroid belt, approximately 6.6 kilometers in diameter. It was discovered on 8 October 1969, by Russian astronomer Lyudmila Chernykh at Crimean Astrophysical Observatory in Nauchny, on the Crimean peninsula. The asteroid was named after Růžena Petrovicova, staff member at Kleť Observatory. Orbit and classification Růžena orbits the Sun in the inner main-belt at a distance of 2.1–2.4 AU once every 3 years and 4 months (1,222 days). Its orbit has an eccentricity of 0.08 and an inclination of 5° with respect to the ecliptic. The asteroid was first identified as 1941 FP at the Finnish Iso-Heikkilä Observatory. The body's observation arc, however, starts with its official discovery observation at Nauchnyj in 1969. Physical characteristics Růžena is a bright S-type asteroid in the SMASS classification. According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Růžena measures 6.62 kilometers in diameter and its surface has an albedo of 0.335. As of 2016, the body's rotation period and shape remain unknown. Naming This asteroid was named in honor of Růžena Petrovicova, observer of comets and minor planets and staff member of the Kleť Observatory, located in what is now the Czech Republic. The official 1856 naming citation was published by the Minor Planet Center on 1 June 1975 (M.P.C. 3825). References 30em 2017-03-29 last obs. JPL Small-Body Database Browser: 1856 Ruzena (1969 TW1) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001856 https://web.archive.org/web/20161220113733/http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001856 dead 20 December 2016 Jet Propulsion Laboratory 8 June 2017 Dictionary of Minor Planet Names – (1856) Ružena Schmadel Lutz D. Springer Berlin Heidelberg 149 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1857 (1856) Ružena 1856 Ruzena (1969 TW1) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1856 13 December 2016 Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008) 2009 https://archive.org/details/dictionaryminorp2008schm limited Appendix – Publication Dates of the MPCs Schmadel Lutz D. Springer Berlin Heidelberg 221 978-3-642-01964-7 10.1007/978-3-642-01965-4 6 Joseph R. Masiero A. K. Mainzer T. Grav J. M. Bauer R. M. Cutri C. Nugent M. S. Cabrera November 2012 Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759L...8M The Astrophysical Journal Letters 759 1 5 2012ApJ...759L...8M 10.1088/2041-8205/759/1/L8 1209.5794 13 December 2016 1856 8 June 2017 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 1856 1855 Korolev 1856 1857 Parchomenko 001856 Category:Discoveries by Lyudmila Chernykh Category:Named minor planets 001856 19691008