1905 Ambartsumian

Main-belt asteroid October 2019 yes 1905 Ambartsumian #D6D6D6 1905Ambartsumian (Lightcurve Inversion).png Lightcurve-based 3D-model of Ambartsumian padding: 5px 0; line-height: 1.3em; 14 May 1972 T. Smirnova Crimean Astrophysical Obs. (1905) Ambartsumian 1972 JZ1932 FC1952 HO 31959 QD1962 JX1969 PF1976 SS 5 Victor Ambartsumian(theoretical astrophysicist) main-belt(inner) 4 September 2017 (JD 2458000.5) 0 84.99 yr (31,043 days) 2.5842 AU 1.8624 AU 2.2233 AU 0.1623 3.32 yr (1,211 days) 224.81° 0.2973 ms / day 2.6158° 201.37° 61.590° 8.008 0.417 km12 5 km (generic) 0.229 0.037 12.8 1905 Ambartsumian, provisional designation 1972 JZ, is an asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 14 May 1972, by Russian astronomer Tamara Smirnova at the Crimean Astrophysical Observatory, Nauchnyj, on the Crimean peninsula. The asteroid was named after theoretical astrophysicist Victor Ambartsumian. Orbit and classification Ambartsumian orbits the Sun in the inner main-belt at a distance of 1.9–2.6 AU once every 3 years and 4 months (1,211 days). Its orbit has an eccentricity of 0.16 and an inclination of 3° with respect to the ecliptic. It was first identified as 1932 FC at Simeiz Observatory in 1932, extending the body's observation arc by 40 years prior to its official discovery observation. Physical characteristics According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Ambartsumian measures 8.0 kilometers in diameter and its surface has an albedo of 0.23. When using a generic diameter-to-magnitude conversion, it has a diameter of 7–17 kilometers, based on an absolute magnitude of 12.8 and an albedo in the range of 0.05–0.25, which accounts for both the brighter stony as well as for the darker carbonaceous spectral types. As of 2017, Ambartsumians composition, rotation period and shape remain unknown. Naming This minor planet was named after Soviet–Armenian theoretical astrophysicist Victor Ambartsumian (1908–1996), founder of the Soviet School for Astrophysics, president of the Academy of Sciences of the Armenian SSR, director of the Byurakan Observatory, and president of the IAU (1961–1964). The official 1905 naming citation was published by the Minor Planet Center on 20 February 1976 (M.P.C. 3937). References 30em 2017-03-29 last obs. JPL Small-Body Database Browser: 1905 Ambartsumian (1972 JZ) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001905 https://web.archive.org/web/20161220092412/http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001905 dead 20 December 2016 Jet Propulsion Laboratory 9 June 2017 Dictionary of Minor Planet Names – (1905) Ambartsumian Schmadel Lutz D. Springer Berlin Heidelberg 153 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1906 (1905) Ambartsumian 1905 Ambartsumian (1972 JZ) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1905 11 December 2016 Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008) Appendix – Publication Dates of the MPCs Schmadel Lutz D. Springer Berlin Heidelberg 221 978-3-642-01964-7 10.1007/978-3-642-01965-4 Asteroid Size Estimator CNEOS NASA/JPL https://cneos.jpl.nasa.gov/tools/ast_size_est.html 12 November 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 10 December 2016 1905 9 June 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 1905 1904 Massevitch 1905 1906 Naef 001905 Category:Discoveries by Tamara Mikhaylovna Smirnova Category:Named minor planets 19720514