1339 Désagneauxa

Stony Eoan asteroid October 2019 yes 1339 Désagneauxa #D6D6D6 001339-asteroid shape model (1339) Désagneauxa.png Modelled shape of Désagneauxa 4 December 1934 L. Boyer Algiers Obs. (1339) Désagneauxa 1934 XB1951 AF discoverer's brother-in-law main-beltEos 4 September 2017 (JD 2458000.5) 0 82.57 yr (30,160 days) 3.1936 AU 2.8467 AU 3.0202 AU 0.0574 5.25 yr (1,917 days) 260.48° 0.1878 ms / day 8.6903° 291.00° 162.21° 22.96 1.7 km23.04 km (derived)24.20 0.65 km24.450 0.209 km25.733 0.200 km 9.3209 0.0006 h9.37510 0.00005 h9.37514 0.00001 h9.380 0.003 h 0.1274 0.01650.144 0.0240.151 0.0090.1589 0.0260.1747 (derived) Tholen = SSB–V = 0.790U–B = 0.425 10.30 0.2310.710.81 1339 Désagneauxa, provisional designation 1934 XB, is a stony Eoan asteroid from the outer region of the asteroid belt, approximately 24 kilometers in diameter. It was discovered on 4 December 1934, by French astronomer Louis Boyer at the North African Algiers Observatory in Algeria. A few nights later, the asteroid was independently discovered by astronomers Grigory Neujmin and Eugène Delporte, at the Crimean Simeiz and Belgian Uccle Observatory, respectively. It was later named after discoverer's brother-in-law. Orbit and classification Désagneauxa is a member of the Eos family, which is thought to have formed from a catastrophic collision, disrupting its parent body into thousands of fragments. It is the 4th largest asteroid family with nearly 10,000 known members. The asteroid orbits the Sun in the outer main-belt at a distance of 2.8–3.2 AU once every 5 years and 3 months (1,917 days). Its orbit has an eccentricity of 0.06 and an inclination of 9° with respect to the ecliptic. As no precovery were taken, and no prior identifications were made, the body's observation arc begins with its official discovery at Algiers in 1934. Naming This minor planet was named by the discoverer in honour of his brother-in-law. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 122). Physical characteristics In the Tholen taxonomy, Désagneauxa is a stony S-type asteroid. Rotation period In August 2008, a rotational lightcurve of this asteroid was obtained by French amateur astronomer René Roy. Lightcurve analysis gave it a rotation period of 9.3209 hours with a change in brightness of 0.48 magnitude (U=2+). In November 2007, photometric observations at the U.S. Ricky Observatory (H46), Missouri, gave a refined period of 9.380 hours with an amplitude of 0.45 magnitude (U=3). Spin axis In addition modeled lightcurves, using photometric data from the Lowell photometric database and other sources, gave a period of 9.37510 and 9.37514 hours, as well as a spin axis of (n.a., 65.0°) and (63.0°, 53.0°) in ecliptic coordinates, respectively (U=n.a.). Diameter and albedo According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Désagneauxa measures between 22.96 and 25.73 kilometers in diameter, and its surface has an albedo between 0.127 and 0.159. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1747 and a diameter of 23.04 kilometers with an absolute magnitude of 10.7. References 30em 2017-07-01 last obs. JPL Small-Body Database Browser: 1339 Desagneauxa (1934 XB) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001339 Jet Propulsion Laboratory 25 July 2017 Dictionary of Minor Planet Names https://archive.org/details/dictionaryminorp00schm limited Schmadel Lutz D. Springer Berlin Heidelberg (1339) Désagneauxa 109 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1340 1339 Desagneauxa (1934 XB) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1339 13 January 2017 Asteroids and comets rotation curves – (1339) Désagneauxa Behrend Raoul Geneva Observatory https://obswww.unige.ch/~behrend/page4cou.html#001339 13 January 2017 October 2026 InternetArchiveBot 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 https://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 13 January 2017 1339 13 January 2017 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 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) 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 Craig Bennefeld Jenel Cantu Vashti Holly Latoya Jordon Tierra Martin Elysabeth Soar Thierry Swinney April 2009 Asteroid Lightcurve Analysis at Ricky Observatory https://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2009MPBu...36...45B The Minor Planet Bulletin 36 2 45–48 1052-8091 2009MPBu...36...45B 13 January 2017 6 J. Hanus M. Broz J. Durech B. D. Warner J. Brinsfield R. Durkee D. Higgins R. A. Koff J. Oey F. Pilcher R. Stephens L. P. Strabla Q. Ulisse R. Girelli November 2013 An anisotropic distribution of spin vectors in asteroid families http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2013A&A...559A.134H Astronomy and Astrophysics 559 19 2013A&A...559A.134H 10.1051/0004-6361/201321993 1309.4296 13 January 2017 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 13 January 2017 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 https://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 13 January 2017 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 1339 1338 Duponta 1339 1340 Yvette 001339 Category:Discoveries by Louis Boyer (astronomer) Category:Named minor planets 001339 19341204