1117 Reginita

Main-belt asteroid October 2019 yes 1117 Reginita #D6D6D6 001117-asteroid shape model (1117) Reginita.png Shape model of Reginita from its lightcurve J. Comas Solà Fabra Obs. 24 May 1927 (1117) Reginita 1927 KAA904 TA Reginita (discoverer's niece) main-belt(inner) background 4 September 2017 (JD 2458000.5) 0 112.47 yr (41,080 days) 2.6934 AU 1.8017 AU 2.2475 AU 0.1984 3.37 yr (1,231 days) 245.71° 0.2925 ms / day 4.3446° 147.14° 151.05° 9.82 2.35 km10.193 0.250 km10.29 km (taken)10.292 km11.22 0.35 km 2.928 0.0134 h2.94 0.010 h2.9458 0.0002 h2.946 0.001 h2.9463 0.0006 h2.9464 0.0005 h 0.293 0.0410.35160.3585 0.07850.36 0.13 S (Tholen) 11.7 1117 Reginita (prov. designation: 1927 KA) is a stony background asteroid from the inner regions of the asteroid belt. It was discovered on 24 May 1927, by Catalan astronomer Josep Comas i Solà at the Fabra Observatory in Barcelona, Spain, who named it after his niece. The bright S-type asteroid has a notably short rotation period of 2.9 hours and measures approximately 10 km mi off us in diameter. Orbit and classification Reginita is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements. It orbits the Sun in the inner asteroid belt at a distance of 1.8–2.7 AU once every 3 years and 4 months (1,231 days; semi-major axis of 2.25 AU). Its orbit has an eccentricity of 0.20 and an inclination of 4° with respect to the ecliptic. The asteroid was first observed as A904 TA at Heidelberg Observatory in October 1904. The body's observation arc also begins at Heidelberg in April 1930, almost three years after its official discovery observation at Barcelona. Naming This minor planet was named after the niece of the discoverer. The 1117 naming was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 105). Physical characteristics In the Tholen classification, Reginita is a common, stony S-type asteroid. Rotation period Several rotational lightcurves of Reginita have been obtained from photometric observations since 1988. The consolidated lightcurve analysis gave a rotation period of 2.946 hours with a brightness amplitude between 0.10 and 0.33 magnitude (U=3). Diameter and albedo According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer (WISE), Reginita measures between 9.82 and 11.22 kilometers in diameter and its surface has an albedo between 0.293 and 0.36. The Collaborative Asteroid Lightcurve Link adopts Petr Pravec's revised WISE data, that is, an albedo of 0.3516 and a diameter of 10.29 kilometers based on an absolute magnitude of 11.69. References 30em 2017-03-30 last obs. JPL Small-Body Database Browser: 1117 Reginita (1927 KA) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001117 Jet Propulsion Laboratory 10 January 2018 Dictionary of Minor Planet Names Schmadel Lutz D. Springer Berlin Heidelberg (1117) Reginita 95 2007 10.1007/978-3-540-29925-7_1118 978-3-540-00238-3 1117 Reginita (1927 KA) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1117 10 January 2018 Asteroids and comets rotation curves – (1117) Reginita Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page3cou.html#001117 10 January 2018 3 December 2002 https://web.archive.org/web/20021203214643/http://obswww.unige.ch/~behrend/page3cou.html#001117 dead 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 118745497 1117 10 January 2018 Petr Pravec Alan W. Harris Peter Kusnirák Adrián Galád Kamil Hornoch September 2012 Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations Icarus 221 1 365–387 2012Icar..221..365P 10.1016/j.icarus.2012.07.026 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 35447010 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 The Astrophysical Journal Letters 759 1 5 2012ApJ...759L...8M 10.1088/2041-8205/759/1/L8 1209.5794 46350317 6 C. R. Nugent A. Mainzer J. Bauer R. M. Cutri E. A. Kramer T. Grav J. Masiero S. Sonnett E. L. Wright September 2016 NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos The Astronomical Journal 152 3 12 2016AJ....152...63N 10.3847/0004-6256/152/3/63 1606.08923 free W. Z. Wisniewski T. M. Michalowski A. W. Harris R. S. McMillan March 1995 Photoelectric Observations of 125 Asteroids Abstracts of the Lunar and Planetary Science Conference 26 1511 1995LPI....26.1511W 6 Chan-Kao Chang Wing-Huen Ip Ip Wing-huen Hsing-Wen Lin Yu-Chi Cheng Chow-Choong Ngeow Ting-Chang Yang Adam Waszczak Shrinivas R. Kulkarni David Levitan Branimir Sesar Russ Laher Jason Surace Thomas. A. Prince August 2015 Asteroid Spin-rate Study Using the Intermediate Palomar Transient Factory The Astrophysical Journal Supplement Series 219 2 19 2015ApJS..219...27C 10.1088/0067-0049/219/2/27 1506.08493 17093124 6 A. Kryszczynska F. Colas M. Polinska R. Hirsch V. Ivanova G. Apostolovska B. Bilkina F. P. Velichko T. Kwiatkowski P. Kankiewicz F. Vachier V. Umlenski T. Michalowski A. Marciniak A. Maury K. Kaminski M. Fagas W. Dimitrov W. Borczyk K. Sobkowiak J. Lecacheux R. Behrend A. Klotz L. Bernasconi R. Crippa F. Manzini R. Poncy P. Antonini D. Oszkiewicz T. Santana-Ros October 2012 Do Slivan states exist in the Flora family?. I. Photometric survey of the Flora region Astronomy and Astrophysics 546 51 2012A&A...546A..72K 10.1051/0004-6361/201219199 free 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 8342929 Hanjie Tan Bin Li Xing Gao October 2017 The Rotation Period of 1117 Reginita The Minor Planet Bulletin 44 4 307 1052-8091 2017MPBu...44..307T Asteroid 1117 Reginita Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1117+Reginita 13 March 2020 https://web.archive.org/web/20200819124014/https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1117+Reginita 19 August 2020 dead Asteroid 1117 Reginita – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1117 13 March 2020 External links Lightcurve Database Query (LCDB), at www.minorplanet.info 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 – Geneva Observatory, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 1117 1116 Catriona 1117 1118 Hanskya 001117 Category:Discoveries by Josep Comas Solà Category:Named minor planets 19270524