1230 Riceia

Main-belt asteroid October 2019 yes 1230 Riceia #D6D6D6 001230-asteroid shape model (1230) Riceia.png Shape model of Riceia from its lightcurve K. Reinmuth Heidelberg Obs. 9 October 1931 (1230) Riceia 1931 TX 11964 TS1964 UE1975 HH ' r ai s i @ Hugh Rice(U.S. amateur astronomer) main-belt(inner)background 4 September 2017 (JD 2458000.5) 0 86.13 yr (31,459 days) 3.0335 AU 2.1104 AU 2.5719 AU 0.1795 4.12 yr (1,507 days) 288.81° 0.2390 ms / day 10.515° 200.55° 185.25° 6.194 0.344 km7.46 km (calculated) 6.67317 0.00001 h 0.20 (assumed)0.318 0.037 S 12.9013.013.11 0.22 1230 Riceia, provisional designation 1931 TX 1, is a stony background asteroid from the central regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 9 October 1931, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory. The asteroid was named after Hugh Rice, amateur astronomer of New York and director of the Museum of Natural Sciences. Orbit and classification Riceia is a non-family asteroid from the main belt's background population. It orbits the Sun in the central asteroid belt at a distance of 2.1–3.0 AU once every 4 years and 1 month (1,507 days; semi-major axis of 2.57 AU). Its orbit has an eccentricity of 0.18 and an inclination of 11° with respect to the ecliptic. The body's observation arc begins at Heidelberg on 17 October 1931, or eight days after its official discovery observation. Physical characteristics Riceia has been characterized as a stony S-type asteroid by Pan-STARRS photometric survey. Rotation period and pole In 2016, a rotational lightcurve of Riceia was modeled from photometric data from the Lowell Photometric Database. Lightcurve analysis gave a sidereal rotation period of 6.67317 hours as well as a spin axis of (37.0°, −63.0°) in ecliptic coordinates (λ, β). Diameter and albedo According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Riceia measures 6.19 kilometers in diameter and its surface has a high albedo of 0.318. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 7.46 kilometers based on an absolute magnitude of 13.0. Naming This minor planet was named after American amateur astronomer Hugh Rice, director of the Museum of Natural Sciences (possibly AMNH). The naming was proposed by Irving Meyer and endorsed by German astronomer Gustav Stracke who mentioned on a postcard in February 1937, that his American college, Meyer, who himself did not discover any asteroids, requested the naming after the city of Rutherford, where a private observatory was located at the time. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 113). References 30em 2017-11-25 last obs. JPL Small-Body Database Browser: 1230 Riceia (1931 TX1) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001230 https://web.archive.org/web/20200918004233/https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001230 dead 18 September 2020 Jet Propulsion Laboratory 10 January 2018 Dictionary of Minor Planet Names – (1230) Riceia Schmadel Lutz D. Springer Berlin Heidelberg 102 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1231 (1230) Riceia Dictionary of Minor Planet Names – (1249) Rutherfordia Schmadel Lutz D. Springer Berlin Heidelberg 104 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1250 (1249) Rutherfordia 1230 Riceia (1931 TX1) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1230 10 January 2018 Asteroid 1230 Riceia – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1230 29 October 2019 1230 10 January 2018 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 10 January 2018 J. Durech J. Hanus D. Oszkiewicz R. Vanco March 2016 Asteroid models from the Lowell photometric database http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2016A&A...587A..48D Astronomy and Astrophysics 587 6 2016A&A...587A..48D 10.1051/0004-6361/201527573 1601.02909 10 January 2018 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 10 January 2018 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 – Observatoire de Genève, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 1230 1229 Tilia 1230 1231 Auricula 001230 Category:Discoveries by Karl Wilhelm Reinmuth Category:Named minor planets 19311009