1818 Brahms

Main-belt asteroid October 2019 yes 1818 Brahms #D6D6D6 15 August 1939 K. Reinmuth Heidelberg Obs. (1818) Brahms 1939 PE1936 TF1955 SU1955 TN1955 UCA904 RE Johannes Brahms(German composer) main-belt(inner) 4 September 2017 (JD 2458000.5) 0 112.50 yr (41,092 days) 2.5504 AU 1.7770 AU 2.1637 AU 0.1787 3.18 yr (1,163 days) 194.32° 0.3097 ms / day 2.9782° 249.48° 74.560° 8 3 km (generic) 13.8 1818 Brahms, provisional designation 1939 PE, is an asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 15 August 1939, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany. The asteroid was named after composer Johannes Brahms. Orbit and classification Brahms orbits the Sun in the inner main-belt at a distance of 1.8–2.6 AU once every 3 years and 2 months (1,163 days). Its orbit has an eccentricity of 0.18 and an inclination of 3° with respect to the ecliptic. Brahms was first identified as A904 RE at the discovering observatory in 1904, extending the body's observation arc by 35 years prior to its official discovery observation. Physical characteristics As of 2017, Brahms's effective size, albedo and spectral type, as well as its rotation period and shape remain unknown. Based on a magnitude-to-diameter conversion, its generic diameter is between 5 and 11 kilometer for an absolute magnitude of 13.8, and an assumed albedo in the range of 0.05 to 0.25. Since asteroids in the inner main-belt are typically of stony rather than carbonaceous composition, with albedos of 0.20 or higher, Brahmss diameter can be estimated at around 6 kilometers, as the higher its albedo (reflectivity), the lower the body's diameter at a constant absolute magnitude (brightness). Naming This minor planet is named for the German composer Johannes Brahms (1833–1897). The official 1818 naming citation was published by the Minor Planet Center on 20 February 1976 (M.P.C. 3935). References 30em 2017-03-14 last obs. JPL Small-Body Database Browser: 1818 Brahms (1939 PE) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001818 Jet Propulsion Laboratory 8 June 2017 Dictionary of Minor Planet Names (1818) Brahms Schmadel Lutz D. Springer Berlin Heidelberg 145 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1819 1818 Brahms (1939 PE) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1818 15 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 9 November 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 1818 1817 Katanga 1818 1819 Laputa 001818 Category:Johannes Brahms Category:Discoveries by Karl Wilhelm Reinmuth Category:Named minor planets 19390815