1142 Aetolia

Main-belt asteroid October 2019 yes 1142 Aetolia #D6D6D6 K. Reinmuth Heidelberg Obs. 24 January 1930 (1142) Aetolia 1930 BC1931 LC1937 LN1937 LU1942 GF1942 GS1943 PF1948 JS1948 KG1954 KJ1954 MU1958 BBA902 GBA907 CBA908 GB iː ' t oʊ l i əAetolia Aetolia (Greek region) main-belt(outer) 4 September 2017 (JD 2458000.5) 0 115.24 yr (42,093 days) 3.4423 AU 2.9265 AU 3.1844 AU 0.0810 5.68 yr (2,076 days) 90.209° 0.1734 ms / day 2.1096° 139.34° 96.492° 22.135 0.133 km23.764 0.124 km24.92 1.57 km27.10 km (calculated) 7.68 0.12 h10.730 0.005 h10.74 0.02 h 0.20 (assumed)0.216 0.0290.2439 0.06100.273 0.034 S 9.95 0.07 (R)10.210.3010.35 0.29 1142 Aetolia, provisional designation 1930 BC, is a stony background asteroid from the outer region of the asteroid belt, approximately 24 kilometers in diameter. It was discovered on 24 January 1930, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory and named for the Greek region Aetolia. Orbit and classification Aetolia has not been associated with any known asteroid family. It orbits the Sun in the outer main-belt at a distance of 2.9–3.4 AU once every 5 years and 8 months (2,076 days). Its orbit has an eccentricity of 0.08 and an inclination of 2° with respect to the ecliptic. The asteroid was first identified as A902 GB at Heidelberg in April 1902. The body's observation arc begins at the USNO in May 1908, or 22 years prior to its official discovery observation. Physical characteristics Aetolia has been characterized as a common stony S-type asteroid by Pan-STARRS photometric survey. Rotation period In May 2010, two rotational lightcurves of Aetolia were independently obtained from photometric observations by French amateur astronomer René Roy and by Russell Durkee at the S.O.S. Observatory (H39) near Minneapolis, United States. Lightcurve analysis gave a rotation period of 10.730 and 10.74 hours with a brightness variation of 0.20 and 0.22 in magnitude, respectively (U=3-/3-). A more recent and lower-rated observation gave a divergent period of 7.68 hours (U=2). Diameter and albedo According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Aetolia measures between 22.135 and 24.92 kilometers in diameter and its surface has an albedo between 0.216 and 0.273. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 27.10 kilometers based on an absolute magnitude of 10.2. Naming This minor planet was named after the Greek region Aetolia, north of the Gulf of Patras. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 107). References 30em 2017-07-05 last obs. JPL Small-Body Database Browser: 1142 Aetolia (1930 BC) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001142 Jet Propulsion Laboratory 25 August 2017 Dictionary of Minor Planet Names – (1142) Aetolia Schmadel Lutz D. Springer Berlin Heidelberg 97 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1143 (1142) Aetolia 1142 Aetolia (1930 BC) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1142 25 August 2017 Asteroids and comets rotation curves – (1142) Aetolia Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page3cou.html#001142 25 August 2017 3 December 2002 https://web.archive.org/web/20021203214643/http://obswww.unige.ch/~behrend/page3cou.html#001142 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 119293330 25 August 2017 1142 25 August 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) 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 Durkee, Russell I. January 2011 Asteroids Observed from the Shed of Science Observatory: 2010 May–October http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011MPBu...38...39D The Minor Planet Bulletin 38 1 39–40 1052-8091 2011MPBu...38...39D 25 August 2017 6 Chan-Kao Chang Hsing-Wen Lin Wing-Huen Ip Ip Wing-huen Thomas A. Prince Shrinivas R. Kulkarni David Levitan Russ Laher Jason Surace December 2016 Large Super-fast Rotator Hunting Using the Intermediate Palomar Transient Factory The Astrophysical Journal Supplement Series 227 2 13 2016ApJS..227...20C 10.3847/0067-0049/227/2/20 1608.07910 free 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 53493339 25 August 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 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 1142 1141 Bohmia 1142 1143 Odysseus 001142 Category:Discoveries by Karl Wilhelm Reinmuth Category:Named minor planets 19300124