1110 Jaroslawa

Bright background asteroid and rather slow rotator March 2018 yes 1110 Jaroslawa #D6D6D6 001110-asteroid shape model (1110) Jaroslawa.png Shape model of Jaroslawa from its lightcurve G. Neujmin Simeiz Obs. 10 August 1928 (1110) Jaroslawa 1928 PD1934 FNA917 FA Jaroslav Grigorevich Neujmin(discoverer's son) main-belt(inner)background 23 March 2018 (JD 2458200.5) 0 89.31 yr (32,620 d) 2.7532 AU 1.6839 AU 2.2186 AU 0.2410 3.30 yr (1,207 d) 45.750° 0.2983 ms / day 5.8558° 241.75° 78.600° 12.15 2.05 km12.30 2.32 km12.306 0.101 km13.397 0.096 km14.90 0.52 km15.60 km (calculated) 94.432 0.002 h97.278 0.005 h97.4 0.3 h 0.153 0.0120.1895 0.01640.20 (assumed)0.237 0.0340.29 0.190.33 0.15 SMASS SL 11.4011.6311.65 0.2211.80 1110 Jaroslawa (prov. designation: 1928 PD) is a bright background asteroid and rather slow rotator from the inner regions of the asteroid belt. The stony S-type asteroid has a rotation period of 97.4 hours and measures approximately 13 km mi off 1 us in diameter. It was discovered at the Simeiz Observatory on the Crimean peninsula on 10 August 1928, by astronomer Soviet Grigory Neujmin, who named it after his son, Jaroslav Grigorevich Neujmin (born 1928). Orbit and classification Jaroslawa is a non-family asteroid from the main belt's background population. It orbits the Sun in the inner main-belt at a distance of 1.7–2.8 AU once every 3 years and 4 months (1,207 days; semi-major axis of 2.22 AU). Its orbit has an eccentricity of 0.24 and an inclination of 6° with respect to the ecliptic. The asteroid was first observed as A917 FA at Heidelberg Observatory in March 1917. The body's observation arc begins with its official discovery observation at Simeiz in August 1928. Naming This minor planet was named after Jaroslav Grigorevich Neujmin (born 1928), son of the discoverer Grigory Neujmin. The author of the Dictionary of Minor Planet Names leaned about the naming from Ilya Isaakovich Neyachenko and Nikolai Chernykh after whom the asteroids 3845 Neyachenko and 2325 Chernykh were named. Physical characteristics In the SMASS classification, Jaroslawa is a common, stony S-type asteroid, while it has been characterized as an uncommon L-type asteroid by PanSTARRS photometric survey. Rotation period In January 2012, a rotational lightcurve of Jaroslawa was obtained from photometric observations by American astronomer Maurice Clark at Preston Gott Observatory in Lubbock, Texas. Lightcurve analysis gave a long rotation period of 94.432 hours and a high brightness variation of 0.80 magnitude (U=2+). In October 2014, Frederick Pilcher at the Organ Mesa Observatory G50 in New Mexico, in collaboration with astronomers at Etscorn 719 and Bigmuskie B88 observatories, obtained a refined period of 97.4 hours with an amplitude of 0.65 0.05 magnitude (U=3-). This result supersedes other measurements by Maurice Clark, Nicolas Esseiva, Raoul Behrend, Laurent Bernasconi, Jean-Gabriel Bosch and Josep Coloma. While not being a core slow rotator, with periods above 100 hours, Jaroslawa has a significantly longer period than most minor planets, which typically rotate between 2 and 20 hours once around their axes. Spin axis and shape In 2016, a modeled lightcurve using photometric data from various sources was published. It gave a concurring period of 97.278 hours, as well as a spin axis of (236.0°, 75.0°) in ecliptic coordinates (λ, β). All lightcurve observations show a high brightness variation, indicative for an elongated, non-spheroidal shape. Diameter and albedo According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Jaroslawa measures between 12.15 and 14.90 kilometers in diameter and its surface has an albedo between 0.153 and 0.33. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for a stony asteroid of 0.20 and calculates a diameter of 15.60 kilometers based on an absolute magnitude of 11.4. References 30em 2017-12-01 last obs. JPL Small-Body Database Browser: 1110 Jaroslawa (1928 PD) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001110 Jet Propulsion Laboratory 6 March 2018 Dictionary of Minor Planet Names Schmadel Lutz D. Springer Berlin Heidelberg (1110) Jaroslawa 94 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1111 1110 Jaroslawa (1928 PD) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1110 6 March 2018 Asteroids and comets rotation curves – (1110) Jaroslawa Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page3cou.html#001110 6 March 2018 3 December 2002 https://web.archive.org/web/20021203214643/http://obswww.unige.ch/~behrend/page3cou.html#001110 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 119293330 Asteroid 1110 Jaroslawa – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1110 28 October 2019 1110 6 March 2018 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 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 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 6 March 2018 Pilcher Frederick Ferrero Andrea Klinglesmith Daniel A. III Hanowell Jesse April 2015 Rotation Period Determination for 1110 Jaroslawa Minor Planet Bulletin http://www.minorplanet.info/MPB/issues/MPB_42-2.pdf 42 2 90–91 2015MPBu...42...90P 1052-8091 21 February 2020 13 March 2020 https://web.archive.org/web/20200221210256/http://www.minorplanet.info/MPB/issues/MPB_42-2.pdf dead Clark Maurice January 2013 Lightcurve Analysis of 1110 Jaroslawa and 13643 Takushi Minor Planet Bulletin http://www.minorplanet.info/MPB/issues/MPB_40-1.pdf 40 1 11–12 2013MPBu...40...11C 1052-8091 23 February 2020 13 March 2020 https://web.archive.org/web/20200223220337/http://www.minorplanet.info/MPB/issues/MPB_40-1.pdf dead 6 Hanuš J. Ďurech J. Oszkiewicz D. A. Behrend R. Carry B. Delbo M. Adam O. Afonina V. Anquetin R. Antonini P. Arnold L. Audejean M. Aurard P. Bachschmidt M. Baduel B. Barbotin E. Barroy P. Baudouin P. Berard L. Berger N. Bernasconi L. Bosch J. -G. Bouley S. Bozhinova I. Brinsfield J. Brunetto L. Canaud G. Caron J. Carrier F. Casalnuovo G. 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February 2016 New and updated convex shape models of asteroids based on optical data from a large collaboration network Astronomy and Astrophysics 586 A108 2016A&A...586A.108H 0004-6361 10.1051/0004-6361/201527441 1510.07422 119112278 Clark Maurice March 2007 Lightcurve Results for 1318 Nerina, 222 Lermontov 3015 Candy, 3089 Oujianquan, 3155 Lee, 6410 Fujiwara, 6500 Kodaira, (8290) 1992 NP, 9566 Rykhlova, (42923) 1999 SR18, and 2001 FY Minor Planet Bulletin http://www.minorplanet.info/MPB/issues/MPB_34-1.pdf 34 1 19–22 2007MPBu...34...19C 1052-8091 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 6 March 2018 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 – Geneva Observatory, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 1110 1109 Tata 1110 1111 Reinmuthia 001110 Category:Discoveries by Grigory Neujmin Category:Named minor planets 001110 19280810