1923 Osiris

Dark main-belt asteroid October 2019 yes 1923 Osiris #D6D6D6 24 September 1960 C. J. van HoutenI. van Houten G.T. Gehrels Palomar Obs. (1923) Osiris 4011 P-L1964 TO 21966 FR1974 KN1974 KP1974 LE ə ˈ s ai r ᵻ shttp://www.lexico.com/definition/Osiris https://web.archive.org/web/20200321100209/https://www.lexico.com/definition/osiris dead 21 March 2020 Osiris Lexico UK English Dictionary Oxford University Press Osiris (Egyptian mythology) main-belt(inner)Sulamitis 4 September 2017 (JD 2458000.5) 0 62.70 yr (22,900 days) 2.5900 AU 2.2813 AU 2.4356 AU 0.0634 3.80 yr (1,388 days) 269.38° 0.2593 ms / day 4.9580° 353.07° 106.04° 13.1 km13.461 0.206 0.031 0.0060.0591 ± 0.008 SMASS = C 13.6 1923 Osiris, provisional designation 4011 P-L, is a dark asteroid from the inner regions of the asteroid belt, approximately 13 kilometers in diameter. It was discovered on 24 September 1960, by Ingrid and Cornelis Johannes van Houten at Leiden, on photographic plates taken by Tom Gehrels at Palomar Observatory in the United States. It was named after the Egyptian god Osiris. Orbit and classification Osiris orbits the Sun in the inner main-belt at a distance of 2.3–2.6 AU once every 3 years and 10 months (1,388 days). Its orbit has an eccentricity of 0.06 and an inclination of 5° with respect to the ecliptic. Due to a precovery taken at the discovering observatory in 1953, the body's observation arc is extended by 7 years prior to its official discovery observation. Palomar–Leiden survey The designation P–L stands for Palomar–Leiden, named after Palomar Observatory and Leiden Observatory, which collaborated on the fruitful Palomar–Leiden survey in the 1960s. Gehrels used Palomar's Samuel Oschin telescope (also known as the 48-inch Schmidt Telescope), and shipped the photographic plates to Ingrid and Cornelis Johannes van Houten at Leiden Observatory. The trio are credited with several thousand asteroid discoveries. Physical characteristics In the SMASS classification, Osiris is a carbonaceous C-type asteroid. According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Osiris measures 13.461 kilometers in diameter and its surface has a low albedo of 0.031. As of 2017, no rotational lightcurve has been obtained. Naming This minor planet was named after Osiris, the Egyptian god of vegetation, of the waxing and waning Moon and of the annual flooding of the Nile. The official naming citation was published by the Minor Planet Center on 1 November 1979 (M.P.C. 5013). References 30em 2016-08-18 last obs. JPL Small-Body Database Browser: 1923 Osiris (4011 P-L) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001923 Jet Propulsion Laboratory 14 June 2017 Dictionary of Minor Planet Names – (1923) Osiris Schmadel Lutz D. Springer Berlin Heidelberg 154 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1924 (1923) Osiris 1923 Osiris (4011 P-L) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1923 14 June 2017 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 14 June 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 14 June 2017 1923 14 June 2017 1 Nov 1979 New Names of Minor Planets Minor Planet Circular Cambridge, Mass Minor Planet Center MPC 5013 https://www.minorplanetcenter.net/iau/ECS/MPCArchive/1979/MPC_19791101.pdf 0736-6884 External links Asteroid Lightcurve Database (LCDB), query form (info https://web.archive.org/web/20110721225144/http://www.minorplanet.info/lightcurvedatabase.html 21 July 2011 ) 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 1923 1922 Zulu 1923 1924 Horus 001923 Category:Discoveries by Cornelis Johannes van Houten Category:Discoveries by Ingrid van Houten-Groeneveld Category:Discoveries by Tom Gehrels 4011 Category:Named minor planets 001923 19600924