1954 Kukarkin

Slow-rotating main-belt asteroid April 2018 yes 1954 Kukarkin #D6D6D6 001954-asteroid shape model (1954) Kukarkin.png Modelled shape of Kukarkin from its lightcurve P. F. Shajn Simeiz Obs. 15 August 1952 (1954) Kukarkin 1952 PH1957 QB Boris Kukarkin (astronomer) main-belt(outer) 4 September 2017 (JD 2458000.5) 0 63.87 yr (23,327 days) 3.8543 AU 2.0177 AU 2.9360 AU 0.3128 5.03 yr (1,838 days) 324.18° 0.1959 ms / day 14.794° 278.02° 70.427° 13.659 0.309 km30.59 km (calculated) 136.40 0.03 h 0.057 (assumed)0.261 0.016 C 11.311.4 1954 Kukarkin (prov. designation: 1952 PH) is an asteroid and slow rotator on an eccentric orbit from the outer regions of the asteroid belt. It was discovered on 15 August 1952, by Russian astronomer Pelageya Shajn at Simeiz Observatory on the Crimean peninsula. The asteroid has a exceptionally long rotation period of 136.4 hours and measures approximately 30 km mi off 2 us in diameter. It was named after astronomer Boris Kukarkin. Orbit and classification Kukarkin orbits the Sun in the outer main-belt at a distance of 2.0–3.9 AU once every 5.03 years (1,838 days). Its orbit has an eccentricity of 0.31 and an inclination of 15° with respect to the ecliptic. No precoveries were taken prior to its discovery. Naming This minor planet is named after stellar astronomer Boris Vasilyevich Kukarkin (1909–1977), a well-known specialist for variable stars, the structure of stellar systems, and professor at Moscow State University. Kukarkin started and edited the General Catalogue of Variable Stars that was first published in 1948. He also served as vice-president of the Astronomical Council of Academy of Sciences of the USSR as well as of the International Astronomical Union and was the president of its Commission 27. The approved naming citation was published by the Minor Planet Center on 1 June 1980 (M.P.C. 5358). Physical characteristics Kukarkin is a slow rotator, with a long period of 136.40 0.03 hours, measured at Los Algarrobos Observatory, Uruguay (I38) during a favorable opposition in 2012. The well-defined rotational lightcurve had brightness variation of 0.8 0.05 magnitude (U=3-). While observations taken by NEOWISE gave an albedo of 0.2608 0.0155 and a diameter of 13.659 0.309 kilometers, the Collaborative Asteroid Lightcurve Link assumes a standard albedo for a carbonaceous C-type asteroid of 0.057 and calculates a significantly larger diameter of 30.6 kilometers, as the lower the albedo, the larger the body's diameter at a constant absolute magnitude. References 2016-06-27 last obs. JPL Small-Body Database Browser: 1954 Kukarkin (1952 PH) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001954 Jet Propulsion Laboratory 2 July 2017 Dictionary of Minor Planet Names – (1954) Kukarkin Schmadel Lutz D. Springer Berlin Heidelberg (1954) Kukarkin 157 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1955 1954 Kukarkin (1952 PH) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1954 18 May 2016 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 18 May 2016 1954 18 May 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 http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...90M The Astrophysical Journal 741 2 25 2011ApJ...741...90M 10.1088/0004-637X/741/2/90 1109.6407 18 May 2016 Alvarez, Eduardo Manuel January 2013 Period Determination for the Slow Rotator 1954 Kukarkin http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2013MPBu...40...29A The Minor Planet Bulletin 40 1 29–30 1052-8091 2013MPBu...40...29A 18 May 2016 6 Joseph R. Masiero A. K. Mainzer T. Grav J. M. Bauer R. M. Cutri J. Dailey P. R. M. Eisenhardt R. S. McMillan T. B. Spahr M. F. Skrutskie D. Tholen R. G. Walker E. L. Wright E. DeBaun D. Elsbury T. IV Gautier S. Gomillion A. Wilkins November 2011 Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M The Astrophysical Journal 741 2 20 2011ApJ...741...68M 10.1088/0004-637X/741/2/68 1109.4096 8 December 2016 External links Asteroid Lightcurve Database (LCDB), query form (info https://web.archive.org/web/20110721225144/http://www.minorplanet.info/lightcurvedatabase.html 21 July 2011 ) 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 1954 1953 Rupertwildt 1954 1955 McMath 001954 Category:Discoveries by Pelageya Shajn Category:Named minor planets 001954 19520815