1790 Volkov

16 kilometre wide asteroid in the inner regions of the Asteroid Belt October 2019 yes 1790 Volkov #D6D6D6 9 March 1967 L. Chernykh Crimean Astrophysical Obs. (1790) Volkov 1967 ER1926 AB1950 BU 11955 SV 21957 FB Vladislav Volkov (cosmonaut) main-beltFlora 4 September 2017 (JD 2458000.5) 0 91.42 yr (33,392 days) 2.4644 AU 2.0126 AU 2.2385 AU 0.1009 3.35 yr (1,223 days) 45.470° 0.2943 ms / day 5.1103° 2.0099° 147.74° 7.087 0.093 km8.057 0.059 km8.67 0.35 km8.98 km (calculated) 10.7419 0.0002 h21.455 0.005 h 0.24 (assumed)0.241 0.0210.2790 0.02880.511 0.057 S 12.412.50 1790 Volkov, provisional designation 1967 ER, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 9 March 1967, by Russian astronomer Lyudmila Chernykh at Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula, and named after cosmonaut Vladislav Volkov. Orbit and classification Volkov is a stony S-type asteroid and member of the Flora family, one of the largest populations of inner main-belt asteroids. It orbits the Sun in the inner main-belt at a distance of 2.0–2.5 AU once every 3 years and 4 months (1,223 days). Its orbit has an eccentricity of 0.10 and an inclination of 5° with respect to the ecliptic. First identified as 1926 AB at Heidelberg Observatory, Volkovs observation arc is extended by 41 years prior to its official discovery observation. Physical characteristics Rotation period Two rotational lightcurves of Volkov were obtained from photometric observations by Robert Stephens and by French amateur astronomer Pierre Antonini in early 2007. The lightcurves gave a rotation period of 10.7419 and 21.455 hours with a brightness variation of 0.09 and 0.14 magnitude, respectively (U=3/2). 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, Volkov measures between 7.08 and 8.67 kilometers in diameter, and its surface has an albedo between 0.241 and 0.511. The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from 8 Flora, the largest member and namesake of its family – and calculates a diameter of 8.98 kilometers with an absolute magnitude of 12.4. Naming This minor planet was named in honor of Russian–Soviet cosmonaut Vladislav Volkov, flight engineer of the Soyuz 11 spacecraft, who died at the age of 35 during the vehicle's return to Earth after completing the flight program of the Salyut station on 30 June 1971. The lunar crater Volkov is also named after him. The minor planets 1789 Dobrovolsky and 1791 Patsayev were named in honour of his dead crew members. The names of all three cosmonauts are also engraved on the plaque next to the sculpture of the Fallen Astronaut on the Moon, which was placed there during the Apollo 15 mission, containing the names of eight American astronauts and six Soviet cosmonauts, who had all died in service. The official 1790 naming citation was published by the Minor Planet Center on 1 July 1972 (M.P.C. 3296). References 30em 2017-05-06 last obs. JPL Small-Body Database Browser: 1790 Volkov (1967 ER) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001790 Jet Propulsion Laboratory 8 June 2017 Dictionary of Minor Planet Names – (1790) Volkov Schmadel Lutz D. Springer Berlin Heidelberg 143 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1791 (1790) Volkov 1790 Volkov (1967 ER) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1790 19 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 Asteroids and comets rotation curves – (1790) Volkov Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page4cou.html#001790 19 December 2016 1 April 2019 https://web.archive.org/web/20190401181659/http://obswww.unige.ch/~behrend/page4cou.html#001790 dead 1790 19 December 2016 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) 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 Stephens, Robert D. September 2007 Photometry from GMARS and Santana Observatories - Early 2007 http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2007MPBu...34...64S The Minor Planet Bulletin 34 3 64–65 1052-8091 2007MPBu...34...64S 19 December 2016 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 19 December 2016 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 1790 1789 Dobrovolsky 1790 1791 Patsayev 001790 Category:Discoveries by Lyudmila Chernykh Category:Named minor planets 19670309