1361 Leuschneria

Carbonaceous asteroid October 2019 yes 1361 Leuschneria #D6D6D6 001361-asteroid shape model (1361) Leuschneria.png Modelled shape of Leuschneria 30 August 1935 E. Delporte Uccle Obs. (1361) Leuschneria 1935 QA Armin Otto Leuschner(American astronomer) main-belt(outer) 16 February 2017 (JD 2457800.5) 0 80.95 yr (29,566 days) 3.4801 AU 2.6841 AU 3.0821 AU 0.1291 5.41 yr (1,976 days) 16.851° 0.1822 ms / day 21.592° 164.73° 173.35° 29.637 0.199 km30.16 km (derived)30.301 0.212 km32.74 0.41 km33.47 0.55 km 9.646 0.001 h12.0893 0.0035 h 0.066 0.0090.077 0.0030.0773 (derived)0.0779 0.0154 C 10.8011.011.01 0.36 1361 Leuschneria, provisional designation 1935 QA, is a carbonaceous asteroid from the outer regions of the asteroid belt, approximately 30 kilometers in diameter. It was discovered on 30 August 1935, by Belgian astronomer Eugène Delporte at Uccle Observatory in Belgium, and named after American astronomer Armin Otto Leuschner. Orbit Leuschneria is a carbonaceous C-type asteroid that orbits the Sun at a distance of 2.7–3.5 AU once every 5 years and 5 months (1,976 days). Its orbit has an eccentricity of 0.13 and an inclination of 22° with respect to the ecliptic. It was first observed at Johannesburg Observatory, extending the body's observation arc by 3 days prior to its official discovery observation at Uccle. Naming This minor planet was named after American astronomer Armin Otto Leuschner (1868–1953), on a proposal by Sylvain Arend during a visit to Berkeley, where Leuschner was the director of the Leuschner Observatory at University of California. He is known for his books Celestial Mechanics and The Minor Planets of the Hecuba Group. Naming citation was first mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 123). The lunar crater Leuschner is also named in his honor. Physical characteristics Lightcurve In May and June 2015, two rotational lightcurves of Leuschneria were obtained from photometric observations by Maurice Clark at Preston Gott Observatory of Texas Tech University, United States, and by Giovanni Casalnuovo at Eurac Observatory (C62) in Bolzano, Italy. Lightcurve analysis gave a rotation period of 12.0893 and 9.646 hours with a brightness amplitude of 0.75 and 0.19 magnitude, respectively (U=2/2-). Diameter and albedo According to the surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Leuschneria measures between 29.637 and 33.47 kilometers in diameter and its surface has a respective albedo between 0.066 and 0.0779. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0773 and a diameter of 30.16 kilometers with an absolute magnitude of 11.0. References 30em 2016-08-07 last obs. JPL Small-Body Database Browser: 1361 Leuschneria (1935 QA) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001361 Jet Propulsion Laboratory 3 April 2017 Dictionary of Minor Planet Names https://archive.org/details/dictionaryminorp00schm limited Schmadel Lutz D. Springer Berlin Heidelberg (1361) Leuschneria 110 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1362 1361 Leuschneria (1935 QA) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1361 3 April 2017 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 3 April 2017 1361 3 April 2017 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 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 3 April 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 free (online, AcuA catalog p. 153) Clark, Maurice January 2016 Asteroid Photometry from the Preston Gott Observatory http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2016MPBu...43....2C The Minor Planet Bulletin 43 1 2–5 1052-8091 2016MPBu...43....2C 3 April 2017 Casalnuovo, Giovanni Battista April 2016 Lightcurve Analysis for Nine Main Belt Asteroids http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2016MPBu...43..112C The Minor Planet Bulletin 43 2 112–115 1052-8091 2016MPBu...43..112C 3 April 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 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 3 April 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 1361 1360 Tarka 1361 1362 Griqua 001361 Category:Discoveries by Eugène Joseph Delporte Category:Named minor planets 19350830