14974 Počátky

Main-belt asteroid October 2019 yes 14974 Počátky #D6D6D6 22 September 1997 M. Tichý Kleť Obs. (14974) Počátky 1997 SK 11991 FF 2 Počátky (Czech town) main-belt(middle)background 4 September 2017 (JD 2458000.5) 0 26.13 yr (9,543 days) 2.8575 AU 2.4047 AU 2.6311 AU 0.0860 4.27 yr (1,559 days) 100.11° 0.2309 ms / day 3.8704° 338.42° 158.25° 4.040 0.831 km4.88 km (calculated) 21.7079 0.0320 h21.7277 0.0320 h 0.10 (assumed)0.226 0.100 S 14.214.225 0.009 (R)14.226 0.005 (R)14.43 0.1914.67 14974 Počátky, provisional designation 1997 SK 1, is a stony background asteroid from the middle region of the asteroid belt, approximately 4 kilometers in diameter. It was discovered by Czech astronomer Miloš Tichý at Kleť Observatory in the Czech Republic on 22 September 1997, and named for the Czech town Počátky. Classification and orbit Počátky is a stony S-type asteroid, that orbits the Sun in the middle main-belt at a distance of 2.4–2.9 AU once every 4 years and 3 months (1,559 days). Its orbit has an eccentricity of 0.09 and an inclination of 4° with respect to the ecliptic. A first precovery was taken at ESO's La Silla Observatory in 1991, extending the asteroid's observation arc by 6 years prior to its discovery. Physical characteristics Two rotational lightcurves for this asteroid were obtained from photometric observations made at the U.S Palomar Transient Factory, California, in August 2010 and February 2012. The lightcurves gave a rotation period of 21.7277 0.0320 and 21.7079 0.0320 hours with a brightness amplitude of 0.57 and 0.68 in magnitude, respectively (U=2/2). According to the survey carried out by the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, Počátky measures 4.0 kilometers in diameter and its surface has an albedo of 0.23, while the Collaborative Asteroid Lightcurve Link (CALL) assumes an untypically low albedo for stony asteroids of 0.10, and thus calculates a larger diameter of 4.9 kilometers. Naming This minor planet was named after the south Bohemian town of Počátky, Czech Republic. It is the birthplace of the discoverer Miloš Tichý. The approved naming citation was published by the Minor Planet Center on 11 November 2000 (M.P.C. 41572). References 2017-05-05 last obs. JPL Small-Body Database Browser: 14974 Pocatky (1997 SK1) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2014974 Jet Propulsion Laboratory 5 July 2017 Dictionary of Minor Planet Names – (14974) Počátky Schmadel Lutz D. Springer Berlin Heidelberg 819 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_9074 (14974) Počátky 14974 Pocatky (1997 SK1) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=14974 6 April 2016 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 17 May 2016 14974 17 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 17 May 2016 6 Adam Waszczak Chan-Kao Chang Eran O. Ofek Russ Laher Frank Masci David Levitan Jason Surace Yu-Chi Cheng Wing-Huen Ip Daisuke Kinoshita George Helou Thomas A. Prince Shrinivas Kulkarni September 2015 Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015AJ....150...75W The Astronomical Journal 150 3 35 2015AJ....150...75W 10.1088/0004-6256/150/3/75 1504.04041 17 May 2016 6 Peter Veres Robert Jedicke Alan Fitzsimmons Larry Denneau Mikael Granvik Bryce Bolin Serge Chastel Richard J. Wainscoat William S. Burgett Kenneth C. Chambers Heather Flewelling Nick Kaiser Eugen A. Magnier Jeff S. Morgan Paul A. Price John L. Tonry Christopher Waters November 2015 Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V Icarus 261 34–47 2015Icar..261...34V 10.1016/j.icarus.2015.08.007 1506.00762 17 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 3 December 2016 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 (10001)-(15000) – Minor Planet Center 14974 14973 Rossirosina 14974 14975 Serasin 014974 Category:Discoveries by Miloš Tichý Category:Named minor planets 19970922