1784 Benguella

Main-belt asteroid December 2018 yes 1784 Benguella #D6D6D6 C. Jackson Johannesburg Obs. 30 June 1935 (1784) Benguella 1935 MG1938 EX1950 ON1950 QP1951 YQ1953 FT1957 JF1957 MH1968 HY1969 UU 1 Benguela(city in Angola) main-belt(inner)background 27 April 2019 (JD 2458600.5) 0 83.31 yr (30,430 d) 2.7242 AU 2.0858 AU 2.4050 AU 0.1327 3.73 yr (1,362 d) 174.06° 0.2643 ms / day 1.4727° 95.271° 184.89° 10.480 0.100 km11.80 0.41 km16.68 1.3 km 0.0763 0.0140.156 0.0120.237 0.045 12.212.30 1784 Benguella, provisional designation 1935 MG, is a background asteroid from the inner regions of the asteroid belt, approximately 12 km mi off 2 us in diameter. It was discovered by South African astronomer Cyril Jackson at the Johannesburg Observatory on 30 June 1935. It was named for the city of Benguela in Angola. The low-numbered asteroid has been studied poorly. Orbit and classification According to modern HCM-analyses, Benguella is a non-family asteroid from the main belt's background population. It orbits the Sun in the inner asteroid belt at a distance of 2.1–2.7 AU once every 3 years and 9 months (1,362 days; semi-major axis of 2.41 AU). Its orbit has an eccentricity of 0.13 and an inclination of 1° with respect to the ecliptic. The body's observation arc begins with its official discovery observation at Johannesburg in June 1935. Naming This minor planet was named after Angola's city and chief port Benguela (São Felipe de Benguela), formerly spelled Benguella. The official 1784 naming citation was published by the Minor Planet Center on 1 February 1980 (M.P.C. 5183). Physical characteristics Benguella spectral type is unknown, with no assumptions possible based on the asteroid's albedo (see below) As of 2018, no rotational lightcurve of Benguella has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown. According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Benguella measures between 10.48 and 16.68 kilometers in diameter and its surface has an albedo between 0.076 and 0.24. References 30em 2018-10-22 last obs. JPL Small-Body Database Browser: 1784 Benguella (1935 MG) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001784 Jet Propulsion Laboratory 10 December 2018 Dictionary of Minor Planet Names – (1784) Benguella Schmadel Lutz D. Springer Berlin Heidelberg 143 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1785 (1784) Benguella 1784 Benguella (1935 MG) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1784 10 December 2018 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 10 December 2018 Asteroid (1784) Benguella – Proper elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?n=1784&pc=1.1.6 4 December 2018 Asteroid 1784 Benguella Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1784+Benguella 10 December 2018 https://web.archive.org/web/20181210202740/https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1784+Benguella 10 December 2018 dead 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 The Astrophysical Journal 791 2 11 2014ApJ...791..121M 10.1088/0004-637X/791/2/121 1406.6645 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 (online, AcuA catalog p. 153) E. F. Tedesco P. V. Noah M. Noah S. D. Price October 2004 IRAS Minor Planet Survey V6.0 https://sbnarchive.psi.edu/pds3/iras/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab NASA Planetary Data System – IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS-A-FPA-3-RDR-IMPS-V6.0 2004PDSS...12.....T 10 December 2018 1784 10 December 2018 External links Dictionary of Minor Planet Names, Google books Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 1784 1783 Albitskij 1784 1785 Wurm 001784 Category:Discoveries by Cyril Jackson (astronomer) Category:Named minor planets 19350630