1302 Werra

Themistian asteroid October 2019 yes 1302 Werra #D6D6D6 K. Reinmuth Heidelberg Obs. 28 September 1924 (1302) Werra 1924 SV1930 WD Werra(river in central Germany) main-belt(outer)Themis 4 September 2017 (JD 2458000.5) 0 93.10 yr (34,003 days) 3.6580 AU 2.5677 AU 3.1128 AU 0.1751 5.49 yr (2,006 days) 251.95° 0.1795 ms / day 2.5958° 90.142° 354.64° 24.35 6.54 km31.04 km (calculated)32.18 0.50 km34.542 0.258 km35.041 0.114 km 48 h (retracted) 0.0710 0.01580.076 0.0060.08 (assumed)0.10 0.070.102 0.004 C (assumed) 10.6010.810.9010.99 0.27 1302 Werra, provisional designation 1924 SV, is a Themistian asteroid from the outer regions of the asteroid belt, approximately 30 kilometers in diameter. It was discovered on 28 September 1924, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory. The asteroid was named for the river Werra in central Germany. Orbit and classification Werra is a Themistian asteroid that belongs to the Themis family (602), a very large family of carbonaceous asteroids, named after its parent body 24 Themis. It orbits the Sun in the outer main-belt at a distance of 2.6–3.7 AU once every 5 years and 6 months (2,006 days; semi-major axis of 3.11 AU). Its orbit has an eccentricity of 0.18 and an inclination of 3° with respect to the ecliptic. The body's observation arc begins at Heidelberg with its official discovery observation in September 1924. Physical characteristics Werra is an assumed carbonaceous C-type asteroid, which is the overall spectral type for members of the Themis family.23 Rotation period In March 2009, a fragmentary lightcurve of Werra was obtained from photometric observations by French amateur astronomer Pierre Antonini. Lightcurve analysis gave a poorly constraint rotation period of 2 days with a brightness amplitude of less than 0.1 magnitude. The result was later retracted at the Lightcurve Data Base (U=n.a.). As of 2017, no secure period has been obtained. 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, Werra measures between 24.35 and 35.041 kilometers in diameter and its surface has an albedo between 0.0710 and 0.102. The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.08 and calculates a diameter of 31.04 kilometers based on an absolute magnitude of 10.9. Naming This minor planet was named after the river Werra in central Germany. It merges the Fulda in Hannoversch-Münden, Lower Saxony, to form the river Weser. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (1302 H 119). References 30em 2017-11-02 last obs. JPL Small-Body Database Browser: 1302 Werra (1924 SV) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001302 Jet Propulsion Laboratory 11 December 2017 Schmadel Lutz D. Dictionary of Minor Planet Names Springer Berlin Heidelberg 107 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1303 (1302) Werra 1302 Werra (1924 SV) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1302 11 December 2017 Asteroids and comets rotation curves – (1302) Werra Behrend Raoul Geneva Observatory https://obswww.unige.ch/~behrend/page4cou.html#001302 11 December 2017 October 2026 InternetArchiveBot 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 Asteroid 1302 Werra – Nesvorny HCM Asteroid Families V3.0 Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1302+Werra#Asteroid%201302%20WerraEAR-A-VARGBDET-5-NESVORNYFAM-V3.0 26 October 2019 https://web.archive.org/web/20201004033916/https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1302+Werra#Asteroid%201302%20WerraEAR-A-VARGBDET-5-NESVORNYFAM-V3.0 4 October 2020 dead 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 1302 11 December 2017 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 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 11 December 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 11 December 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 1302 1301 Yvonne 1302 1303 Luthera 001302 Category:Discoveries by Karl Wilhelm Reinmuth Category:Named minor planets 19240928