1426 Riviera

Bright asteroid from the central regions of the asteroid belt October 2019 yes 1426 Riviera #D6D6D6 M. Laugier Nice Obs. 1 April 1937 (1426) Riviera 1937 GF1930 UD 11933 HJ1938 SN1949 HP2004 ST 12A920 CA French Riviera(Mediterranean coast) main-belt(middle)background 4 September 2017 (JD 2458000.5) 0 80.50 yr (29,403 days) 2.9943 AU 2.1690 AU 2.5816 AU 0.1598 4.15 yr (1,515 days) 111.74° 0.2376 ms / day 9.0632° 335.04° 275.05° 14.29 0.80 km15.35 km (derived)15.44 0.7 km17.41 0.47 km17.613 0.110 km18.033 0.094 km 4.38 0.06 h4.4 0.1 h4.40 h4.4044 0.0002 h 0.2671 0.02900.281 0.0170.3274 (derived)0.3546 0.0370.414 0.048 S (assumed) 10.8010.9 1426 Riviera, provisional designation 1937 GF, is a bright asteroid from the central regions of the asteroid belt, approximately 16 kilometers in diameter. Discovered by Marguerite Laugier at the Nice Observatory in 1937, the asteroid was later named for the Côte d'Azur, also known as French Riviera. Discovery Riviera was discovered on 1 April 1937, by French astronomer Marguerite Laugier at the Nice Observatory in southeastern France. Two nights later, the asteroid was independently discovered by South African astronomer Cyril Jackson at the Union Observatory in Johannesburg on 3 April 1937. The Minor Planet Center only recognizes the first discoverer. The asteroid was first identified as A920 CA at the German Bergedorf Observatory in February 1920. Orbit and classification Riviera is a non-family asteroid of the main belt's background population. It orbits the Sun in the central asteroid belt at a distance of 2.2–3.0 AU once every 4 years and 2 months (1,515 days). Its orbit has an eccentricity of 0.16 and an inclination of 9° with respect to the ecliptic. The body's observation arc begins at Johannesburg Observatory in 1937, two weeks after its official discovery observation at Nice. Physical characteristics Riviera is an assumed stony S-type asteroid. Rotation period In March 2003, a rotational lightcurve of Riviera was obtained from photometric observations by French amateur astronomers Laurent Bernasconi and Nathanaël Berger. Lightcurve analysis gave a well-defined rotation period of 4.4044 hours with a brightness amplitude of 0.30 magnitude (U=3). Other lightcurves with a concurring period between 4.38 and 4.40 hours were obtained by René Roy, Horacio Correia and by a group of astronomers at the Pico dos Dias Observatory in Brazil (U=2/2/3-). 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, Riviera measures between 14.29 and 18.033 kilometers in diameter and its surface has an albedo between 0.2671 and 0.414. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.3274 and a diameter of 15.35 kilometers based on an absolute magnitude of 10.9. Naming This minor planet was named after the French Riviera (Côte d'Azur), the Mediterranean coast in southeastern France, noted for its mild weather and where the discovering Nice Observatory is located. The asteroid's name was suggested by Frederick Pilcher, after whom 1990 1990 Pilcher was named. The official naming citation was published by the Minor Planet Center on 8 April 1982 (M.P.C. 6831). References 30em 2017-10-01 last obs. JPL Small-Body Database Browser: 1426 Riviera (1937 GF) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001426 Jet Propulsion Laboratory 26 October 2017 Dictionary of Minor Planet Names – (1426) Riviera Schmadel Lutz D. Springer Berlin Heidelberg 115 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1427 (1426) Riviera 1426 Riviera (1937 GF) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1426 26 October 2017 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 26 October 2017 Asteroids and comets rotation curves – (1426) Riviera Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page4cou.html#001426 26 October 2017 3 August 2003 https://web.archive.org/web/20030803183423/http://obswww.unige.ch/~behrend/page4cou.html#001426 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 26 October 2017 Asteroid 1426 Riviera – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1426 29 October 2019 1426 26 October 2017 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 26 October 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 R. Almeida C. A. Angeli R. Duffard D. Lazzaro February 2004 Rotation periods for small main-belt asteroids http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2004A&A...415..403A Astronomy and Astrophysics 415 403–406 2004A&A...415..403A 10.1051/0004-6361:20034585 26 October 2017 free 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 (1)-(5000) – Minor Planet Center 1426 1425 Tuorla 1426 1427 Ruvuma 001426 Category:Discoveries by Marguerite Laugier Category:Named minor planets 19370401