11020 Orwell

Main-belt background asteroid October 2019 yes 11020 Orwell #D6D6D6 31 July 1984 A. Mrkos Kleť Obs. 11020 Orwell 1984 OG1979 SA 91999 GL 5 George Orwell(English writer) main-belt(outer)background 4 September 2017 (JD 2458000.5) 0 36.93 yr (13,487 days) 3.5620 AU 2.6377 AU 3.0998 AU 0.1491 5.46 yr (1,993 days) 48.167° 0.1806 ms / day 3.0130° 153.87° 136.87° 14.466 0.115 km 0.089 0.004 12.6 11020 Orwell (provisional designation 1984 OG) is a background asteroid from the outer regions of the asteroid belt, approximately 14 kilometers in diameter. It was discovered on 31 July 1984, by Czech astronomer Antonín Mrkos at Kleť Observatory in the Czech Republic. The asteroid was named after English writer George Orwell. Classification and orbit Orwell orbits the Sun in the outer main-belt at a distance of 2.6–3.6 AU once every 5 years and 6 months (1,993 days). Its orbit has an eccentricity of 0.15 and an inclination of 3° with respect to the ecliptic. It was first observed as 1979 SA 9 at Crimea–Nauchnij in 1979, extending the body's observation arc by 5 years prior to its official discovery observation at Klet. Physical characteristics According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Orwell measures 14.466 kilometers in diameter and its surface has an albedo of 0.089. It has an absolute magnitude of 12.6. Lightcurves As of 2017, Orwell's spectral type, as well as its rotation period and shape remain unknown. Naming This minor planet was named for British writer Eric Blair (1903–1950), better known by his pen name George Orwell, who is associated with the year of the object's discovery, 1984, due to his dystopian novel Nineteen Eighty-Four, which explores the dangers of totalitarian rule. He is also known for the novel Animal Farm. The name was proposed by Czech astronomer Jana Tichá at Klet and supported by Brian G. Marsden. The approved naming citation was published by the Minor Planet Center on 23 May 2000 (M.P.C. 40705). References 30em 2016-08-27 last obs. JPL Small-Body Database Browser: 11020 Orwell (1984 OG) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2011020 https://web.archive.org/web/20170413234716/https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2011020 13 April 2017 Jet Propulsion Laboratory 23 June 2017 Dictionary of Minor Planet Names – (11020) Orwell Schmadel Lutz D. Springer Berlin Heidelberg 750 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_8188 (11020) Orwell 11020 Orwell (1984 OG) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=11020 12 April 2017 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 12 April 2017 11020 12 April 2017 6 Joseph R. Masiero A. K. Mainzer T. Grav J. M. Bauer R. M. Cutri J. Dailey P. R. M. Eisenhardt R. S. McMillan T. B. Spahr M. F. Skrutskie D. Tholen R. G. Walker E. L. Wright E. DeBaun D. Elsbury T. IV Gautier S. Gomillion A. Wilkins November 2011 Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M The Astrophysical Journal 741 2 20 2011ApJ...741...68M 10.1088/0004-637X/741/2/68 1109.4096 12 April 2017 External links Kleť Observatory & KLENOT Project homepage 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 (10001)-(15000) – Minor Planet Center 11020 11019 Hansrott 11020 11021 Foderà 011020 Category:Discoveries by Antonín Mrkos Category:Named minor planets Category:George Orwell 19840731