1175 Margo

Stony background asteroid October 2019 yes 1175 Margo #D6D6D6 001175-asteroid shape model (1175) Margo.png Modelled shape of Margo from its lightcurve K. Reinmuth Heidelberg Obs. 17 October 1930 (1175) Margo 1930 UD1953 VK1957 KUA907 VA unknown main-belt(outer)background 4 September 2017 (JD 2458000.5) 0 109.91 yr (40,146 days) 3.4345 AU 2.9979 AU 3.2162 AU 0.0679 5.77 yr (2,107 days) 61.257° 0.1709 ms / day 16.307° 237.19° 102.79° 22.99 0.85 km24.266 0.276 km25.394 0.250 km58.29 km (calculated) 6.01 0.02 h6.01 0.03 h6.0136 0.0002 h6.01375 0.00005 h6.015 0.001 h6.017 0.001 h11.99 0.03 h 0.057 (assumed)0.2409 0.03290.249 0.0420.302 0.026 SC (assumed) 9.910.010.06 0.2310.20 1175 Margo, provisional designation 1930 UD, is a stony background asteroid from the outermost regions of the asteroid belt, approximately 24 kilometers in diameter. It was discovered on 17 October 1930, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany. The meaning of the asteroids's name is unknown. Orbit and classification Margo is a non-family asteroid from the main belt's background population. It orbits the Sun in the outermost asteroid belt at a distance of 3.0–3.4 AU once every 5 years and 9 months (2,107 days; semi-major axis of 3.22 AU). Its orbit has an eccentricity of 0.07 and an inclination of 16° with respect to the ecliptic. The body's observation arc begins with its first identification as A907 VA at Heidelberg in November 1907, almost 23 years prior to its official discovery observation. Physical characteristics Margo has been characterized as a stony S-type asteroid by Pan-STARRS photometric survey. Conversely, the Collaborative Asteroid Lightcurve Link (CALL) assumes it to be a carbonaceous C-type. Rotation period and poles In November 2005, a rotational lightcurve of Margo was obtained from photometric observations by astronomers Raymond Poncy (177), Gino Farroni, Pierre Antonini, Donn Starkey (H63) and Raoul Behrend. Lightcurve analysis gave a well-defined rotation period of 6.0136 hours with a brightness amplitude of 0.31 magnitude (U=3). Since then, several other, lower-rated lightcurves have been published (U=3-/2+/2+/2/2). In 2016, the asteroid lightcurve has also been modeled using photometric data from various sources. It gave a concurring period of 6.01375 hours and two spin axis in ecliptic coordinates of (184.0°, −43.0°) and (353.0°, −17.0°). 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, Margo measures between 22.99 and 25.394 kilometers in diameter and its surface has an albedo between 0.2409 and 0.302. CALL assumes a standard albedo for carbonaceous asteroids of 0.057 and consequently calculates a much larger diameter of 58.29 kilometers based on an absolute magnitude of 9.9. Naming This minor planet was named by the discoverer Karl Reinmuth. Any reference of its name to a person or occurrence is unknown. Unknown meaning Among the many thousands of named minor planets, Margo is one of 120 asteroids, for which no official naming citation has been published. All of these low-numbered asteroids have numbers between 164 164 Eva and 1514 1514 Ricouxa and were discovered between 1876 and the 1930s, predominantly by astronomers Auguste Charlois, Johann Palisa, Max Wolf and Karl Reinmuth. References 30em 2017-11-02 last obs. JPL Small-Body Database Browser: 1175 Margo (1930 UD) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001175 Jet Propulsion Laboratory 15 November 2017 Dictionary of Minor Planet Names – (1175) Margo Schmadel Lutz D. Springer Berlin Heidelberg 99 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1176 (1175) Margo Dictionary of Minor Planet Names – Fifth Revised and Enlarged revision Appendix 11 – Minor Planet Names with Unknown Meaning Schmadel Lutz D. Springer Berlin Heidelberg 927–929 2007 978-3-540-00238-3 Lutz D. Schmadel 1175 Margo (1930 UD) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1175 15 November 2017 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 http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014ApJ...791..121M The Astrophysical Journal 791 2 11 2014ApJ...791..121M 10.1088/0004-637X/791/2/121 1406.6645 15 November 2017 Asteroids and comets rotation curves – (1175) Margo Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page3cou.html#001175 14 November 2017 3 December 2002 https://web.archive.org/web/20021203214643/http://obswww.unige.ch/~behrend/page3cou.html#001175 dead Asteroid 1175 Margo – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1175 28 October 2019 1175 15 November 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. 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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 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 1175 1174 Marmara 1175 1176 Lucidor 001175 Category:Discoveries by Karl Wilhelm Reinmuth Category:Named minor planets 19301017