14436 Morishita

Main-belt asteroid October 2019 yes 14436 Morishita #D6D6D6 23 March 1992 K. EndateK. Watanabe Kitami Obs. (14436) Morishita 1992 FC 21998 TN 282000 AU 60 Yoko Morishita(amateur astronomer) main-belt(middle)background 4 September 2017 (JD 2458000.5) 0 25.19 yr (9,202 days) 3.1509 AU 1.9961 AU 2.5735 AU 0.2244 4.13 yr (1,508 days) 43.027° 0.2387 ms / day 1.8554° 353.83° 208.24° 3.49 km (calculated)5.656 0.247 km 972.8085 34.9213 h 0.152 0.0350.20 (assumed) S 13.914.114.201 0.010 (R)14.41 0.2314.65 14436 Morishita, provisional designation 1992 FC 2, is a stony background asteroid and exceptionally slow rotator from the middle region of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 23 March 1992, by Japanese astronomers Kin Endate and Kazuro Watanabe at Kitami Observatory in Japan, and named after amateur astronomer Yoko Morishita. Orbit and classification Morishita is a S-type asteroid that orbits the Sun in the central main-belt at a distance of 2.0–3.2 AU once every 4 years and 2 months (1,508 days). Its orbit has an eccentricity of 0.22 and an inclination of 2° with respect to the ecliptic. As no precoveries were taken, and no prior identifications were made, the body's observation arc begins with its official discovery observation. Photometry In October 2010, a rotational lightcurve of Morishita was obtained from photometric observations at the Palomar Transient Factory in California. Lightcurve analysis gave an exceptionally long rotation period of 972.8 hours with a brightness amplitude of 0.82 magnitude, indicative for a non-spheroidal shape (U=2). Diameter and albedo According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Morishita measures 5.656 kilometers in diameter and its surface has an albedo of 0.152, while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a shorter diameter of 3.49 kilometers. Naming This minor planet was named for Yoko Morishita (born 1947), amateur astronomer and supporter of the Astronomical Society of Shikoku, where she has made many contributions to further the spread of astronomical awareness. The approved naming citation was published by the Minor Planet Center on 25 April 2013 (M.P.C. 83583). References 2017-06-02 last obs. JPL Small-Body Database Browser: 14436 Morishita (1992 FC2) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2014436 Jet Propulsion Laboratory 5 July 2017 14436 Morishita (1992 FC2) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=14436 15 January 2017 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 15 January 2017 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 The Astrophysical Journal 741 2 20 2011ApJ...741...68M 10.1088/0004-637X/741/2/68 1109.4096 14436 15 January 2017 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 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 The Astronomical Journal 150 3 35 2015AJ....150...75W 10.1088/0004-6256/150/3/75 1504.04041 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 Icarus 261 34–47 2015Icar..261...34V 10.1016/j.icarus.2015.08.007 1506.00762 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 14436 14436 014436 Category:Discoveries by Kin Endate Category:Discoveries by Kazuro Watanabe Category:Named minor planets 014436 19920323