1198 Atlantis

Rare-type Mars-crossing asteroid October 2019 yes 1198 Atlantis #FA8072 24px (astrological) 7 September 1931 K. Reinmuth Heidelberg Obs. (1198) Atlantis 1931 RA1958 RQ1975 TQ 41975 VX 6 ae t ' l ae n t ᵻ s Island of Atlantis(Greek mythology) Mars-crosser 4 September 2017 (JD 2458000.5) 0 85.48 yr (31,220 days) 3.0065 AU 1.4941 AU 2.2503 AU 0.3360 3.38 yr (1,233 days) 168.18° 0.2920 ms / day 2.7234° 259.58° 84.528° 3.92 km (calculated) 16 h 0.20 (assumed) SMASS = LS 14.07 0.5314.4 1198 Atlantis, provisional designation 1931 RA, is a rare-type asteroid and eccentric Mars-crosser from the inner regions of the asteroid belt, approximately 3.9 kilometers in diameter. It was discovered on 7 September 1931, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The asteroid was named after the mythological island of Atlantis. Orbit Atlantis orbits the Sun at a distance of 1.5–3.0 AU once every 3 years and 5 months (1,233 days). Its orbit has an eccentricity of 0.34 and an inclination of 3° with respect to the ecliptic. The asteroids's observation arc begins at Heidelberg one week after its official discovery observation. Physical characteristics In the SMASS classification, Atlantis is a rare L-type asteroid, that belong to the larger complex of stony asteroids. Rotation period In August 2012, a rotational lightcurve of Atlantis was obtained from photometric observations by Italian astronomer Albino Carbognani at the OAVdA Observatory (B04) in Italy. Lightcurve analysis gave a rotation period of at least 16 hours with a brightness variation of 0.20 magnitude (U=2). Diameter and albedo Atlantis has not been observed by any space-based survey, such as the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, or the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 3.92 kilometers based on an absolute magnitude of 14.4. Naming This minor planet was named after the fictional island of Atlantis from Greek mythology, mentioned in some of Plato's works around 360 BC. The greedy and morally bankrupt civilization of Atlantis was punished by the gods with fire and earthquakes that caused the island to sink into the sea. The naming was suggested by astronomer Gustav Stracke, after whom the asteroids 1227 (1227) through 1234 (1234) were indirectly named by the discoverer. References 30em 2017-02-27 last obs. JPL Small-Body Database Browser: 1198 Atlantis (1931 RA) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001198 Jet Propulsion Laboratory 5 August 2017 Dictionary of Minor Planet Names – (1198) Atlantis Schmadel Lutz D. Springer Berlin Heidelberg 100 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1199 (1198) Atlantis 1198 Atlantis (1931 RA) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1198 5 August 2017 1198 5 August 2017 Carbognani, Albino January 2014 Asteroids Lightcurves at Oavda: 2012 June - 2013 March https://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014MPBu...41....4C The Minor Planet Bulletin 41 1 4–8 1052-8091 2014MPBu...41....4C 5 August 2017 6 Peter Veres Robert Jedicke Alan Fitzsimmons Larry Denneau Mikael Granvik Bryce Bolin Serge Chastel Richard J. Wainscoat William S. Burgett Kenneth C. Chambers Heather Flewelling Nick Kaiser Eugen A. Magnier Jeff S. Morgan Paul A. Price John L. Tonry Christopher Waters November 2015 Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V Icarus 261 34–47 2015Icar..261...34V 10.1016/j.icarus.2015.08.007 1506.00762 5 August 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 – Observatoire de Genève, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 1198 1197 Rhodesia 1198 1199 Geldonia 001198 Category:Discoveries by Karl Wilhelm Reinmuth Category:Named minor planets 001198 19310907