1825 Klare

Main-belt asteroid October 2019 yes 1825 Klare #D6D6D6 001825-asteroid shape model (1825) Klare.png Shape model of Klare from its lightcurve 31 August 1954 K. Reinmuth Heidelberg Obs. (1825) Klare 1954 QH1934 CH1952 DW 21954 SB1954 SF1954 UF 11969 AV Gerhard Klare (German astronomer) main-belt(middle) 4 September 2017 (JD 2458000.5) 0 83.12 yr (30,360 days) 2.9839 AU 2.3702 AU 2.6771 AU 0.1146 4.38 yr (1,600 days) 71.010° 0.2250 ms / day 4.0342° 288.67° 142.57° 14.69 0.82 km19.21 km (calculated) 4.7410 0.0001 hHamanowa4.74173 0.00007 h4.7421 0.0001 h4.74288 0.00005 h4.742885 0.000001 h4.7429 0.0003 h4.7431 0.0001 h4.744 h 0.10 (assumed)0.167 0.021 S/C 11.711.8011.91 0.24 1825 Klare (prov. designation: 1954 QH) is a background asteroid from the central region of the asteroid belt, approximately 15 kilometers in diameter. It was discovered on 31 August 1954, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany. The asteroid was named after Heidelberg astronomer Gerhard Klare. Orbit and classification The presumably stony asteroid orbits the Sun in the central main-belt at a distance of 2.4–3.0 AU once every 4 years and 5 months (1,600 days). Its orbit has an eccentricity of 0.11 and an inclination of 4° with respect to the ecliptic. First identified as 1934 CH at Uccle Observatory in 1934, Klares observation arc begins 20 years prior to its official discovery observation. Naming Klare was named after Gerhard Klare (born 1932), an observing astronomer at Heidelberg Observatory since 1960, whose fields of interest include minor planets. He is also known for his numerous contributions in the yearbook series "Reviews in Modern Astronomy" of the Astronomische Gesellschaft. The official 1825 naming citation was published by the Minor Planet Center on 18 April 1977 (M.P.C. 4156). Physical characteristics Rotation period Klare has been the subject of multiple photometric lightcurve studies, which gave a well-determined rotation period between 4.741 and 4.744 hours with a brightness variation between 0.70 and 0.90 magnitude (U=3/n.a.). Measurements have also been used as the basis for generating a three-dimensional model of its shape. The Collaborative Asteroid Lightcurve Link (CALL) adopts a period 4.744 hours with an amplitude of 0.70 magnitude (U=3). Diameter and albedo According to the survey carried out by the Japanese Akari satellite, Klare measures 14.69 kilometers in diameter, and its surface has an albedo of 0.167, while CALL assumes an albedo of 0.10 – a compromise value for asteroids with a semi-major axis between 2.6 and 2.7 AU, for which neither a S (0.20) nor a C (0.057) type has been determined – and calculates a diameter of 19.21 kilometers with an absolute magnitude of 11.7. Notes Hamanowa Hamanowa 2011, web publication, summary figures given in the Light Curve Data Base – (1825) Klare References 30em 2017-03-29 last obs. JPL Small-Body Database Browser: 1825 Klare (1954 QH) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001825 Jet Propulsion Laboratory 8 June 2017 Dictionary of Minor Planet Names – (1825) Klare Schmadel Lutz D. Springer Berlin Heidelberg 146 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1826 (1825) Klare 1825 Klare (1954 QH) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1825 15 December 2016 Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008) Appendix – Publication Dates of the MPCs Schmadel Lutz D. Springer Berlin Heidelberg 221 978-3-642-01964-7 10.1007/978-3-642-01965-4 Asteroids and comets rotation curves – (1825) Klare Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page4cou.html#001825 15 December 2016 1 April 2019 https://web.archive.org/web/20190401181659/http://obswww.unige.ch/~behrend/page4cou.html#001825 dead 1825 15 December 2016 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) Pray, Donald P. June 2004 Lightcurve analysis of asteroids 110, 196, 776, 804, and 1825 http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2004MPBu...31...34P The Minor Planet Bulletin 31 2 34–36 1052-8091 2004MPBu...31...34P 15 December 2016 Clark, Maurice September 2006 Lightcurve results for 383 Janina, 899 Jokaste, 1825 Klare, 2525 O'Steen 5064 Tanchozuru, and (17939) 1999 HH8 http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2006MPBu...33...53C The Minor Planet Bulletin 33 3 53–56 1052-8091 2006MPBu...33...53C 15 December 2016 Galad, Adrian September 2008 Part of Simple Lightcurves from Modra (October 2007- February 2008) http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2008MPBu...35..128G The Minor Planet Bulletin 35 3 128–132 1052-8091 2008MPBu...35..128G 15 December 2016 Mahfuz Krueng Maurice Clark April 2014 Shaping a 3-D Model of Asteroid 1825 Klare http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014MPBu...41...86K The Minor Planet Bulletin 41 2 86–89 1052-8091 2014MPBu...41...86K 15 December 2016 6 J. Hanus J. Durech D. A. Oszkiewicz R. Behrend B. Carry M. Delbo O. Adam V. Afonina R. Anquetin P. Antonini L. Arnold M. Audejean P. Aurard M. Bachschmidt B. Baduel E. Barbotin P. Barroy P. Baudouin L. Berard N. Berger L. Bernasconi J.-G. Bosch S. Bouley I. Bozhinova J. Brinsfield L. Brunetto G. Canaud J. Caron F. Carrier G. Casalnuovo S. Casulli M. Cerda L. Chalamet S. Charbonnel B. Chinaglia A. Cikota F. Colas J.-F. Coliac A. Collet J. Coloma M. Conjat E. Conseil R. Costa R. Crippa M. Cristofanelli Y. Damerdji Debackè A. re A. Decock Q. Déhais T. Déléage S. Delmelle C. Demeautis M. Drózdz G. Dubos T. Dulcamara M. Dumont R. Durkee R. Dymock A. Escalante del Valle N. Esseiva R. Esseiva M. Esteban T. Fauchez M. Fauerbach M. Fauvaud S. Fauvaud E. Forné C. Fournel D. Fradet J. Garlitz O. Gerteis C. Gillier M. Gillon R. Giraud J.-P. Godard R. Goncalves Hiroko Hamanowa Hiromi Hamanowa K. Hay S. Hellmich S. Heterier D. Higgins R. Hirsch G. Hodosan M. Hren A. Hygate N. Innocent H. Jacquinot S. Jawahar E. Jehin L. Jerosimic A. Klotz W. Koff P. Korlevic E. Kosturkiewicz P. Krafft Y. Krugly F. Kugel O. Labrevoir J. Lecacheux M. Lehký A. Leroy B. Lesquerbault M. J. Lopez-Gonzales M. Lutz B. Mallecot J. Manfroid F. Manzini A. Marciniak A. Martin B. Modave R. Montaigut J. Montier E. Morelle B. Morton S. Mottola R. Naves J. Nomen J. Oey W. Ogloza M. Paiella H. Pallares A. Peyrot F. Pilcher J.-F. Pirenne P. Piron M. Polinska M. Polotto R. Poncy J. P. Previt F. Reignier D. Renauld D. Ricci F. Richard C. Rinner V. Risoldi D. Robilliard D. Romeuf G. Rousseau R. Roy J. Ruthroff P. A. Salom L. Salvador S. Sanchez T. Santana-Ros A. Scholz G. Séné B. Skiff K. Sobkowiak P. Sogorb F. Soldán A. Spiridakis E. Splanska S. Sposetti D. Starkey R. Stephens A. Stiepen R. Stoss J. Strajnic J.-P. Teng G. Tumolo A. Vagnozzi B. Vanoutryve J. M. Vugnon B. D. Warner M. Waucomont O. Wertz M. Winiarski M. Wolf February 2016 New and updated convex shape models of asteroids based on optical data from a large collaboration network Astronomy and Astrophysics 586 24 2016A&A...586A.108H 10.1051/0004-6361/201527441 1510.07422 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 December 2016 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 December 2016 External links PowerPoint presentation – Asteroid 1825 Klare, by Mahfuz Krueng 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 1825 1824 Haworth 1825 1826 Miller 001825 Category:Discoveries by Karl Wilhelm Reinmuth Category:Named minor planets 19540831