1171 Rusthawelia

Main-belt asteroid March 2018 yes 1171 Rusthawelia #D6D6D6 001171-asteroid shape model (1171) Rusthawelia.png Shape model of Rusthawelia from its lightcurve S. Arend Uccle Obs. 3 October 1930 (1171) Rusthawelia 1930 TA1926 AD1926 FH1927 FC1949 BTA904 EBA913 TA Shota Rustaveli(Georgian poet) main-belt(outer)background 23 March 2018 (JD 2458200.5) 0 113.85 yr (41,584 d) 3.7970 AU 2.5779 AU 3.1875 AU 0.1912 5.69 yr (2,079 d) 175.66° 0.1732 ms / day 3.0731° 121.78° 290.57° 70.98 2.42 km(composite estimate)y Individual estimates: 68.67 16.71 km 70.13 2.3 km 70.216 1.560 km 72.09 1.19 km 72.38 20.19 km 82.229 1.004 km 4.9 2.4 17 kgCalculated from its standard gravitational parameter GM = 0.033 0.016 km3 s2. 1.69 g/cm3Assuming a diameter of 82.2 km. 10.80 0.01 h10.98 0.01 h11.013 0.003 h 0.029 0.0030.038 0.0020.0393 0.00510.0394 0.0030.04 0.02 Tholen PPB–V 0.678U–B 0.255 9.899.909.94 0.16 1171 Rusthawelia, provisional designation 1930 TA, is a large and dark background asteroid, approximately 72 km mi off us in diameter, located in the outer regions of the asteroid belt. It was discovered on 3 October 1930, by Belgian astronomer Sylvain Arend at the Royal Observatory of Belgium in Uccle, and was an unnoticed rediscovery of a lost minor planet then known as "Adelaide". As the asteroid was already named for Georgian poet Shota Rustaveli when the rediscovery was realized, its former designation was given to another asteroid instead, which is now known as 525 Adelaide. Rusthawelia is a primitive P-type asteroid and has a rotation period of 11 hours. Unnoticed rediscovery of lost asteroid When Arend discovered Rusthawelia in 1930, it was not realized that he rediscovered the long-lost asteroid "525 Adelaide". It was already discovered 26 years earlier as A904 EB by German astronomer Max Wolf at Heidelberg Observatory in March 1904, who observed it for a short time during the discovery opposition before it became lost. Only decades later, in 1958, it was shown by French astronomer André Patry that both asteroid's discovered by Wolf and Arend were one and the same (M.P.C. 1831). It was then decided that this asteroid retains the number–name designation "1171 Rusthawelia", while 525 Adelaide was vacated and given to another asteroid (which was the object 1908 EKa, discovered by Joel Hastings Metcalf). Another confusion occurred in 1929, one year before Arend's discovery, when American astronomer Anne Sewell Young thought to have found long-lost "Adelaide", when in fact she mistook the asteroid for comet 31P/Schwassmann–Wachmann that had a very similar orbital eccentricity. Orbit and classification Rusthawelia is a non-family asteroid from the main belt's background population. It orbits the Sun in the outer main-belt at a distance of 2.6–3.8 AU once every 5 years and 8 months (2,079 days; semi-major axis of 3.19 AU). Its orbit has an eccentricity of 0.19 and an inclination of 3° with respect to the ecliptic. The body's observation arc begins as A904 EB at Heidelberg in March 1904, when it was discovered by Max Wolf (see above). Naming This minor planet was named for medieval Georgian poet Shota Rustaveli (შოთა რუსთაველი, c. 1160 – after c. 1220). The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 109). Physical characteristics Rusthawelia is a dark and primitive P-type asteroid, as characterized by the Wide-field Infrared Survey Explorer (WISE), and classified by Tholen. Rotation period In October and November 2003, two rotational lightcurves of Rusthawelia were obtained from photometric observations by John Menke at his observatory in Barnesville, Maryland, and by a group of American astronomers. Lightcurve analysis gave a well-defined rotation period of 10.80 and 10.98 hours and a brightness variation of 0.31 and 0.26 magnitude, respectively (U=3/3). A third, concurring period of 11.013 hours with an amplitude of 0.26 magnitude was obtained by French amateur astronomer René Roy in February 2005 (U=3). Diameter and albedo According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's WISE telescope, Rusthawelia measures between 68.67 and 82.23 kilometers in diameter and its surface has an albedo between 0.029 and 0.04. The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.0394 and a diameter of 70.13 kilometers based on an absolute magnitude of 9.90. Notes References 30em 2018-01-20 last obs. JPL Small-Body Database Browser: 1171 Rusthawelia (1930 TA) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001171 Jet Propulsion Laboratory 5 March 2018 Dictionary of Minor Planet Names – (1171) Rusthawelia Schmadel Lutz D. Springer Berlin Heidelberg (1171) Rusthawelia 98–99 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1172 Dictionary of Minor Planet Names – (525) Adelaide Schmadel Lutz D. Springer Berlin Heidelberg (525) Adelaide 56 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_526 Long 'Lost' Planet Found Masquerading as Comet Oakland Tribune June 21, 1929 31 Newspapers.com https://www.newspapers.com/clip/14987519/anne_sewell_young_18711961/ November 9, 2017 1171 Rusthawelia (1930 TA) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1171 5 March 2018 Asteroids and comets rotation curves – (1171) Rusthawelia Behrend Raoul Geneva Observatory https://obswww.unige.ch/~behrend/page3cou.html#001171 5 March 2018 https://web.archive.org/web/20200123022615/https://obswww.unige.ch/~behrend/page3cou.html#001171 23 January 2020 dead Asteroid 1171 Rusthawelia – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1171 28 October 2019 B. Carry December 2012 Density of asteroids Planetary and Space Science 73 1 98–118 10.1016/j.pss.2012.03.009 2012P&SS...73...98C 1203.4336 119226456 See Table 1. 1171 5 March 2018 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 12 IRAS-A-FPA-3-RDR-IMPS-V6.0 2004PDSS...12.....T 22 October 2019 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) 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 35447010 6 C. R. Nugent A. Mainzer J. Bauer R. M. Cutri E. A. Kramer T. Grav J. Masiero S. Sonnett E. L. Wright September 2016 NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos The Astronomical Journal 152 3 12 2016AJ....152...63N 10.3847/0004-6256/152/3/63 1606.08923 free 6 C. R. Nugent A. Mainzer J. Masiero J. Bauer R. M. Cutri T. Grav E. Kramer S. Sonnett R. Stevenson E. L. Wright December 2015 NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015ApJ...814..117N The Astrophysical Journal 814 2 13 2015ApJ...814..117N 10.1088/0004-637X/814/2/117 1509.02522 9341381 5 March 2018 6 Joseph R. Masiero A. K. Mainzer T. Grav J. M. Bauer R. M. Cutri C. Nugent M. S. Cabrera November 2012 Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759L...8M The Astrophysical Journal Letters 759 1 5 2012ApJ...759L...8M 10.1088/2041-8205/759/1/L8 1209.5794 46350317 5 March 2018 Menke John L. September 2005 Lightcurves and periods for asteroids 471 Papagena, 675 Ludmilla, 1016 Anitra, 1127 Mimi, 1165 Imprinetta, 1171 Rustahawelia, and 2283 Bunke Minor Planet Bulletin http://www.minorplanet.info/MPB/issues/MPB_32-3.pdf 32 3 64–66 2005MPBu...32...64M 1052-8091 18 March 2020 14 March 2020 https://web.archive.org/web/20200318042157/http://www.minorplanet.info/MPB/issues/MPB_32-3.pdf dead Ivarsen Kevin Willis Sarah Ingleby Laura Matthews Dan Simet Melanie June 2004 CCD observations and period determination of fifteen minor planets Minor Planet Bulletin http://www.minorplanet.info/MPB/issues/MPB_31-2.pdf 31 2 29–33 2004MPBu...31...29I 1052-8091 19 March 2020 14 March 2020 https://web.archive.org/web/20200319071353/http://www.minorplanet.info/MPB/issues/MPB_31-2.pdf dead 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 53493339 5 March 2018 Fuentes-Muñoz Oscar Farnocchia Davide Giorgini Jon D. Park Ryan S. 2025-12-01 Asteroid Mass Estimation by Mutual Perturbations During Close Encounters After Gaia Focused Product Release The Astronomical Journal 170 6 353 10.3847/1538-3881/ae0cc9 0004-6256 free 2025AJ....170..353F 283347135 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 1171 1170 Siva 1171 1172 Äneas 001171 Category:Discoveries by Sylvain Arend Category:Named minor planets 001171 19301003