1854 Skvortsov

Stony main-belt asteroid October 2019 yes 1854 Skvortsov #D6D6D6 001854-asteroid shape model (1854) Skvortsov.png Shape model of Skvortsov from its lightcurve 22 October 1968 T. Smirnova Crimean Astrophysical Obs. (1854) Skvortsov 1968 UE 11962 HC1964 VC1964 XB Evgenii Skvortsov (astronomer) main-belt(middle) 4 September 2017 (JD 2458000.5) 0 54.75 yr (19,999 days) 2.8909 AU 2.1855 AU 2.5382 AU 0.1390 4.04 yr (1,477 days) 341.44° 0.2437 ms / day 4.8987° 189.24° 274.19° 8.97 km (calculated)9.602 0.095 km10.265 0.070 km 78.5 0.2 h 0.20 (assumed)0.2031 0.06400.252 0.053 S 12.312.6 1854 Skvortsov (prov. designation: 1968 UE 1) is a stony background asteroid and relatively slow rotator from the middle region of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 22 October 1968, by Russian astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnyj on the Crimean peninsula. It is named after astronomer Evgenii Skvortsov. Orbit and classification The asteroid orbits the Sun in the central main-belt at a distance of 2.2–2.9 AU once every 4.04 years (1,477 days). Its orbit has an eccentricity of 0.14 and an inclination of 5° with respect to the ecliptic. Skvortsov was first observed at Goethe Link Observatory in 1962, when it was identified as 1962 HC, extending the body's observation arc by 6 years prior to its official discovery observation. Naming This minor planet was named in honor of Evgenii Skvortsov (1882–1952), an instructor of astronomy in the Simferopol Pedagogical Institute, an active observer of minor planets at the Crimean Simeiz Observatory, and the discoverer of several minor planets, including 1149 Volga, 1167 Dubiago and 1381 Danubia. The official 1854 naming citation was published by the Minor Planet Center on 1 June 1975 (M.P.C. 3825). Physical characteristics Rotation period In March 2006, a rotational lightcurve for Skvortsov was obtained from photometric observations made by American astronomer Brian D. Warner at his Palmer Divide Observatory in Colorado. It gave a rotation period of 78.5 hours with a brightness variation of 0.56 magnitude (U=2). This is a rather slow rotation rate compared to the average asteroid spin of 2–20 hours. Diameter and albedo According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Skvortsov measures between 9.60 and 10.27 kilometers in diameter, and its surface has an albedo of 0.203 to 0.252. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 8.97 kilometers with an absolute magnitude of 12.6. References 30em 2017-01-27 last obs. JPL Small-Body Database Browser: 1854 Skvortsov (1968 UE1) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001854 Jet Propulsion Laboratory 8 June 2017 Dictionary of Minor Planet Names – (1854) Skvortsov Schmadel Lutz D. Springer Berlin Heidelberg 149 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1855 (1854) Skvortsov 1854 Skvortsov (1968 UE1) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1854 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 1854 13 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 Warner, Brian D. December 2006 Asteroid lightcurve analysis at the Palmer Divide Observatory - February - March 2006 http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2006MPBu...33...82W The Minor Planet Bulletin 33 4 82–84 1052-8091 2006MPBu...33...82W 13 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 http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014ApJ...791..121M The Astrophysical Journal 791 2 11 2014ApJ...791..121M 10.1088/0004-637X/791/2/121 1406.6645 13 December 2016 External links Lightcurve plot of 1854 Skvortsov, Palmer Divide Observatory, B. D. Warner (2006) 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 1854 1853 McElroy 1854 1855 Korolev 001854 Category:Discoveries by Tamara Mikhaylovna Smirnova Category:Named minor planets 19681022