100000 Astronautica

Sub-kilometer asteroid December 2018 yes 100000 Astronautica #D6D6D6 28 September 1982 J. B. Gibson Palomar Obs. (100000) Astronautica 1982 SH 12002 CW 115 , ae s t r @ ' n O: t @ k @ 50th anniv. Space Age(la star sailor) main-belt(inner)Hungaria 27 April 2019 (JD 2458600.5) 0 35.59 yr (12,999 d) 2.0707 AU 1.7388 AU 1.9048 AU 0.0871 2.63 yr (960 d) 309.12° 0.3749 ms / day 21.185° 186.56° 199.64° 0.7440 AU (290 LD) 0.94 km (est. at 0.35) E (family based) 16.9 100000 Astronautica (provisional designation 1982 SH 1) is a sub-kilometer asteroid and member of the Hungaria family from the innermost region of the asteroid belt, approximately 940 m mi off 2 us in diameter. It was discovered on 28 September 1982, by American astronomer James Gibson at Palomar Observatory, California, United States. The likely bright E-type asteroid was named Astronautica, the Latin word for "star sailor", on the 50th anniversary of the Space Age. Orbit and classification Astronautica is a core member of the Hungaria family (003), an asteroid family and dynamical group, which forms the innermost dense concentration of asteroids in the Solar System. It orbits the Sun in the inner asteroid belt at a distance of 1.7–2.1 AU once every 2 years and 8 months (960 days; semi-major axis of 1.9 AU). Its orbit has an eccentricity of 0.09 and an inclination of 21° with respect to the ecliptic. The body's observation arc begins with its discovery observation at Palomar Observatory in September 1982. Naming This minor planet marked the milestone of the 100,000th numbered minor planet in October 2005. It was named by the International Astronomical Union's Committee on Small Body Nomenclature to recognize the 50th anniversary of the start of the Space Age, as marked by the launch of the Soviet Sputnik spacecraft into orbit on 4 October 1957. The official 100000 naming citation was published by the Minor Planet Center on 26 September 2007 (M.P.C. 60731). The number 100,000 is significant because it marks the altitude in meters where outer space begins, as delineated by the Kármán line established by the Fédération Aéronautique Internationale. The name "Astronautica" is Latin for "star sailor". Physical characteristics Most members of the Hungaria family are E-type asteroids, which means they have extremely bright enstatite surfaces and albedos typically around 0.35. Based on the body's estimated albedo and its absolute magnitude of 16.9, Astronautica measures approximately 940 m mi off 2 us in diameter. As of 2018, no rotational lightcurve of Astronautica has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown. See also 1000 Piazzia (the one thousandth numbered minor planet) References 2018-04-23 last obs. JPL Small-Body Database Browser: 100000 Astronautica (1982 SH1) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2100000 Jet Propulsion Laboratory 4 December 2018 100000 Astronautica (1982 SH1) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=100000 4 December 2018 Aguilar, David A. Pulliam, Christine Asteroid Named in Honor of 50th Anniversary of the Space Age 9 October 2007 Harvard Smithsonian Center for Astrophysics https://www.cfa.harvard.edu/news/2007-23 18 September 2016 https://web.archive.org/web/20100408160852/http://www.cfa.harvard.edu/news/2007/pr200723.html 8 April 2010 live 6 Jana Tichá Brian G. Marsden Edward L. G. Bowell Iwan P. Williams Brian G. Marsden Daniel W. E. Green Kaare Aksnes Rita M. Schulz Michael F. A'Hearn Julio A. Fernández Pamela Kilmartin Yoshihide Kozai Daniela Lazzaro Syuichi Nakano Keith S. Noll Lutz D. Schmadel Viktor A. Shor Richard M. West Gareth V. Williams Donald K. Yeomans Jin Zhu December 2008 Division III / Working Group Committee on Small Bodies Nomenclature Proceedings of the International Astronomical Union 4 27A 187–189 2009IAUTA..27..187T 10.1017/S1743921308025489 free MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 4 December 2018 Asteroid (100000) Astronautica AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?n=100000&pc=1.1.6 4 December 2018 Asteroid 100000 Astronautica Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=100000+Astronautica 4 December 2018 October 2026 InternetArchiveBot D. Nesvorný M. Broz V. Carruba December 2014 Identification and Dynamical Properties of Asteroid Families Asteroids IV 297–321 2015aste.book..297N 10.2458/azu_uapress_9780816532131-ch016 1502.01628 9780816532131 Asteroid Size Estimator CNEOS NASA/JPL https://cneos.jpl.nasa.gov/tools/ast_size_est.html 4 December 2018 100000 4 December 2018 External links Division F WG Small Bodies Nomenclature (SBN) https://web.archive.org/web/20190607005112/https://www.iau.org/science/scientific_bodies/working_groups/97/ 7 June 2019 , IAU Dictionary of Minor Planet Names, Google books Discovery Circumstances: Numbered Minor Planets (100001)-(105000) – Minor Planet Center 100000 (99999) 1981 FP 100000 (100001) 1982 UC3 100000 Category:Discoveries by James B. Gibson (astronomer) Category:Named minor planets 19820928 Category:Space Age