1350 Rosselia

Asteroid October 2019 yes 1350 Rosselia #D6D6D6 File:001350-asteroid shape model (1350) Rosselia.png Shape model of Rosselia from its lightcurve E. Delporte Uccle Obs. 3 October 1934 (1350) Rosselia 1934 TA1926 AF1929 TN1929 VH1934 VA1938 OC1948 QG1949 YYA924 TB Marie-Thérèse Rossel(editor of Le Soir) main-belt(outer)Koronis 4 September 2017 (JD 2458000.5) 0 88.09 yr (32,176 days) 3.1133 AU 2.6007 AU 2.8570 AU 0.0897 4.83 yr (1,764 days) 65.352° 0.2041 ms / day 2.9392° 139.55° 237.70° 20.822 0.185 km21.083 0.147 km21.22 0.38 km22.60 3.16 km23.35 1.7 km 6.0 h8.1394 0.0002 h8.140 0.001 h8.14 0.05 h8.14008 0.00001 h8.14011 0.00005 h8.16 0.01 h 0.1579 0.0250.185 0.3140.1960 0.05110.199 0.0080.199 0.022 Tholen SSMASS SaB–V 0.854U–B 0.373 10.36 0.25 (R)10.67 0.0610.6810.7810.81 0.01 1350 Rosselia, provisional designation 1934 TA, is a stony Koronian asteroid from the outer regions of the asteroid belt, approximately 22 kilometers in diameter. Discovered by astronomer Eugène Delporte at the Royal Observatory of Belgium in 1934, the asteroid was later named after Marie-Thérèse Rossel, editor of the Belgian newspaper Le Soir. Discovery Rosselia was discovered on 3 October 1934, by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle. One month later, it was independently discovered by German astronomer Richard Schorr at the Bergedorf Observatory, Hamburg, on 3 November 1934. The Minor Planet Center only recognizes the first discoverer. The asteroid was first identified as A924 TB at the Simeiz Observatory in October 1924. Orbit and classification Rosselia is a member of the Koronis family (605), a very large asteroid family with nearly co-planar ecliptical orbits in the outer main belt. It orbits the Sun at a distance of 2.6–3.1 AU once every 4 years and 10 months (1,764 days; semi-major axis of 2.86 AU). Its orbit has an eccentricity of 0.09 and an inclination of 3° with respect to the ecliptic. The body's observation arc begins at Lowell Observatory in September 1929, or five years prior to its official discovery observation at Uccle. Physical characteristics In the Tholen classification, Rosselia is a common S-type asteroid. In the SMASS classification it is an Sa-subtype that transitions to the rare A-type asteroids. Rotation period and poles Several rotational lightcurve of Rosselia have been obtained from photometric observations since 1975. Consolidated lightcurve-analysis gave a well-defined rotation period of 8.140 hours with a brightness amplitude between 0.3 and 0.54 magnitude (U=3). Modeling of the asteroid's lightcurve gave two concurring periods of 8.14008 and 8.14011 hours, with two determined spin axis of (67.0°, −64.0°) and (246.0°, −58.0°) in ecliptic coordinates (λ, β). 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 Wide-field Infrared Survey Explorer, Rosselia measures between 20.822 and 23.35 kilometers in diameter and its surface has an albedo between 0.1579 and 0.199. The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.1579 and a diameter of 23.35 kilometers based on an absolute magnitude of 10.78. Naming This minor planet was named after Marie-Thérèse Rossel (1910–1987), a Belgian businesswoman and editor of the Brussels newspaper Le Soir. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 122). Asteroid 1366 Piccolo was also named after an editor of Le Soir by Delporte. References 30em 2017-11-02 last obs. 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Prince June 2014 313 New Asteroid Rotation Periods from Palomar Transient Factory Observations http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014ApJ...788...17C The Astrophysical Journal 788 1 21 2014ApJ...788...17C 10.1088/0004-637X/788/1/17 1405.1144 15 November 2017 J. Durech J. Hanus D. Oszkiewicz R. Vanco March 2016 Asteroid models from the Lowell photometric database http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2016A&A...587A..48D Astronomy and Astrophysics 587 6 2016A&A...587A..48D 10.1051/0004-6361/201527573 1601.02909 15 November 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 15 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 1350 1349 Bechuana 1350 1351 Uzbekistania 001350 Category:Discoveries by Eugène Joseph Delporte Category:Named minor planets 001350 001350 19341003