1137 Raïssa

Main-belt asteroid April 2018 yes 1137 Raïssa #D6D6D6 001137-asteroid shape model (1137) Raïssa.png Shape model of Raïssa from its lightcurve G. Neujmin Simeiz Obs. 27 October 1929 (1137) Raïssa 1929 WBA908 BBA910 TBA924 JA Raïssa Maseeva(Russian astronomer) main-belt(inner) background 4 September 2017 (JD 2458000.5) 0 113.28 yr (41,374 days) 2.6600 AU 2.1865 AU 2.4233 AU 0.0977 3.77 yr (1,378 days) 132.76° 0.2613 ms / day 4.3162° 78.455° 277.00° 19.421 0.192 km20.029 0.132 km21.21 0.55 km23.66 km (derived)23.69 1.1 km 142.79 0.01 h (222.0°, −66°) (λ1/β1) (40.0°, −77.0°) (λ2/β2) 0.1538 (derived)0.1592 0.0150.206 0.0130.2207 0.07120.228 0.027 S (assumed) B–V 0.950 U–B 0.350 10.610.7410.78 1137 Raïssa (prov. designation: 1929 WB) is a stony background asteroid and slow rotator, approximately 22 km mi off us in diameter, located in the inner regions of the asteroid belt. It was discovered by Grigory Neujmin at Simeiz Observatory in 1929, and named in memory of Raïssa Maseeva, who worked at the Pulkovo Observatory. Discovery Raïssa was discovered on 27 October 1929, by Soviet astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. In the following month, it was independently discovered by German Karl Reinmuth at the Heidelberg Observatory on 21 November 1929. The Minor Planet Center only acknowledges the first discoverer. The asteroid's observation arc begins at the United States Naval Observatory in December 1903, almost 26 years prior to its official discovery observation at Simeiz. Its first identification as A908 BB was made at Heidelberg in January 1908. Orbit and classification Raïssa 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 2.2–2.7 AU once every 3 years and 9 months (1,378 days). Its orbit has an eccentricity of 0.10 and an inclination of 4° with respect to the ecliptic. Naming This minor planet was named in memory of Raïssa Izrailevna Maseeva (1900–1930), a scientific collaborator who worked at the Pulkovo Observatory. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 106). Physical characteristics Raïssa is an assumed stony S-type asteroid. Slow rotator In October 2010, a rotational lightcurve of Raïssa was obtained from photometric observations at the Bigmuskie Observatory B88, Italy, and the Etscorn Campus (719) and Organ Mesa Observatory G50 in New Mexico, United States. Lightcurve analysis gave a rotation period of 142.79 hours with a brightness variation of 0.56 magnitude (U=3-). Previous observations with a shorter period were superseded. With a rotation period of close to six Earth days, Raïssa is a slow rotator as most asteroids have periods of 20 hours or less. Collaborations of observers located on different longitudes, e.g. in the U.S. and Europe are especially important for asteroids with very long periods. The observers can follow the bodies brightness variation at different starting points and thereby cover parts of the lightcurve that were missed by other observers during their daytime. Poles In 2016, a modeled lightcurve using photometric data from various sources gave a concurring period of 143.644 0.005 hours and two spin axis of (222.0°, −66°) and (40.0°, −77.0°) in ecliptic coordinates. Diameter and albedo According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Raïssa measures between 19.421 and 23.69 kilometers in diameter and its surface has an albedo between 0.1592 and 0.228. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1538 and a diameter of 23.66 kilometers based on an absolute magnitude of 10.78. References 30em 2017-03-29 last obs. JPL Small-Body Database Browser: 1137 Raissa (1929 WB) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001137 Jet Propulsion Laboratory 9 September 2017 Dictionary of Minor Planet Names Schmadel Lutz D. Springer Berlin Heidelberg (1137) Raïssa 96 2007 10.1007/978-3-540-29925-7_1138 978-3-540-00238-3 1137 Raissa (1929 WB) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1137 9 September 2017 Asteroids and comets rotation curves – (1137) Raïssa Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page3cou.html#001137 9 September 2017 3 December 2002 https://web.archive.org/web/20021203214643/http://obswww.unige.ch/~behrend/page3cou.html#001137 dead 6 Joseph R. Masiero T. Grav A. K. Mainzer C. R. Nugent J. M. Bauer R. Stevenson S. Sonnett August 2014 Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014ApJ...791..121M The Astrophysical Journal 791 2 11 2014ApJ...791..121M 10.1088/0004-637X/791/2/121 1406.6645 9 September 2017 1137 9 September 2017 6 Fumihiko Usui Daisuke Kuroda Thomas G. Müller Sunao Hasegawa Masateru Ishiguro Takafumi Ootsubo Daisuke Ishihara Hirokazu Kataza Satoshi Takita Shinki Oyabu Munetaka Ueno Hideo Matsuhara Takashi Onaka October 2011 Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey Publications of the Astronomical Society of Japan 63 5 1117–1138 2011PASJ...63.1117U 10.1093/pasj/63.5.1117 (online, AcuA catalog p. 153) E. F. Tedesco P. V. Noah M. Noah S. D. Price October 2004 IRAS Minor Planet Survey V6.0 https://sbnarchive.psi.edu/pds3/iras/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab NASA Planetary Data System 12 IRAS-A-FPA-3-RDR-IMPS-V6.0 2004PDSS...12.....T 22 October 2019 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 Binzel, R. P. October 1987 A photoelectric survey of 130 asteroids http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=1987Icar...72..135B Icarus 72 1 135–208 0019-1035 1987Icar...72..135B 10.1016/0019-1035(87)90125-4 9 September 2017 Ferrero Andrea Klinglesmith Daniel K. III Pilcher Frederick January 2014 The Rotation Period of 1137 Raissa Minor Planet Bulletin http://www.minorplanet.info/MPB/issues/MPB_41-1.pdf 41 1 33 2014MPBu...41...33F 1052-8091 21 July 2020 14 March 2020 https://web.archive.org/web/20200721145646/http://www.minorplanet.info/MPB/issues/MPB_41-1.pdf dead 6 J. Hanus J. Durech D. A. Oszkiewicz R. Behrend B. Carry M. Delbo O. Adam V. Afonina R. Anquetin P. Antonini L. 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Wolf February 2016 New and updated convex shape models of asteroids based on optical data from a large collaboration network Astronomy and Astrophysics 586 24 2016A&A...586A.108H 10.1051/0004-6361/201527441 1510.07422 Asteroid 1137 Raissa Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1137+Raissa 14 March 2020 October 2026 InternetArchiveBot Asteroid 1137 Raissa – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1137 14 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 1137 1136 Mercedes 1137 1138 Attica 001137 Category:Discoveries by Grigory Neujmin Category:Named minor planets 001137 19291027