1941 Wild

Hilda asteroid October 2019 yes 1941 Wild #D6D6D6 6 October 1931 K. Reinmuth Heidelberg Obs. (1941) Wild 1931 TN 11971 SO 1A915 UA Paul Wild (Swiss astronomer) main-beltHildaSchubart 4 September 2017 (JD 2458000.5) 0 101.55 yr (37,090 days) 5.0926 AU 2.8115 AU 3.9520 AU 0.2886 7.86 yr (2,870 days) 288.25° 0.1255 ms / day 3.9587° 60.454° 302.70° 0.4044 AU 2.9810 17.120 0.122 km24.30 km (calculated) 9.05 h45.6488 0.1783 h 0.057 (assumed)0.152 0.032 MC 11.811.83 0.3812.139 0.002 (S) 1941 Wild, provisional designation 1931 TN 1, is an eccentric Hildian asteroid from the outermost region of the asteroid belt, approximately 20 kilometers in diameter. It was discovered on 6 October 1931, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany. The asteroid was named for Swiss astronomer Paul Wild. Orbit and classification Wild is a member of the Hilda family, a large group of asteroids that are thought to have originated from the Kuiper belt. Located in the outermost part of the main-belt, they orbit in a 3:2 orbital resonance with the gas giant Jupiter, meaning that for every 2 orbits Jupiter completes around the Sun, a Hildian asteroid will complete 3 orbits. As the Hildas neither cross the path of any of the planets nor can they be pulled out of orbit by Jupiter's gravitational field due to their resonance, it is likely that the asteroid will remain in a stable orbit for thousands of years. The asteroid orbits the Sun in the outer main-belt at a distance of 2.8–5.1 AU once every 7 years and 10 months (2,870 days). Its orbit has an eccentricity of 0.29 and an inclination of 4° with respect to the ecliptic. Wild's observation arc begins with its discovery observation, as A915 UA, a previous identification made at Heidelberg in 1918, remained unused. Physical characteristics According to the survey on the Hilda Population carried out by the Wide-field Infrared Survey Explorer (WISE) with its subsequent NEOWISE mission, Wild measures 17.2 kilometers in diameter, and its surface has an albedo of 0.152, while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids 0.057, and calculates a diameter of 24.3 kilometers with an absolute magnitude of 11.8. WISE also classifies the carbonaceous asteroid as a metallic M-type. A rotational lightcurve of Wild was obtained by Richard P. Binzel in October 1987. It gave a rotation period of 9.05 hours with a brightness variation of 0.36 magnitude (U=2). A longer period of 45.6 hours was derived from photometric observations at the Palomar Transient Factory in September 2011 (U=1) Naming This minor planet was named in honor of Swiss astronomer Paul Wild (1925–2014), who worked at the Astronomical Institute of the University of Bern. Wild's research focused on the discovery and observation of supernovae in other galaxies. He was also a prolific discoverer of minor planets and comets, most notably of comet Wild 2, which he discovered at the university's nearby Zimmerwald Observatory, and which was later visited by NASA's Stardust Mission. The official 1941 naming citation was published by the Minor Planet Center on 20 February 1976 (M.P.C. 3938). References 30em 2017-05-04 last obs. JPL Small-Body Database Browser: 1941 Wild (1931 TN1) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001941 Jet Propulsion Laboratory 10 June 2017 Schmadel Lutz D. Dictionary of Minor Planet Names Springer Berlin Heidelberg 156 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1942 (1941) Wild 1941 Wild (1931 TN1) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1941 9 December 2016 Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008) 2009 https://archive.org/details/dictionaryminorp2008schm limited 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 2009dmpn.book.....S 1941 9 December 2016 Richard P. Binzel Linda M. Sauter February 1992 Trojan, Hilda, and Cybele asteroids - New lightcurve observations and analysis http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=1992Icar...95..222B Icarus 95 2 222–238 0019-1035 1992Icar...95..222B 10.1016/0019-1035(92)90039-A 9 December 2016 6 Adam Waszczak Chan-Kao Chang Eran O. Ofek Russ Laher Frank Masci David Levitan Jason Surace Yu-Chi Cheng Wing-Huen Ip Daisuke Kinoshita George Helou Thomas A. Prince Shrinivas Kulkarni September 2015 Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015AJ....150...75W The Astronomical Journal 150 3 35 2015AJ....150...75W 10.1088/0004-6256/150/3/75 1504.04041 8342929 9 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 53493339 9 December 2016 6 T. Grav A. K. Mainzer J. Bauer J. Masiero T. Spahr R. S. McMillan R. Walker R. Cutri E. Wright P. R. Eisenhardt E. Blauvelt E. DeBaun D. Elsbury T. Gautier S. Gomillion E. Hand A. Wilkins January 2012 WISE/NEOWISE Observations of the Hilda Population: Preliminary Results http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...744..197G The Astrophysical Journal 744 2 15 2012ApJ...744..197G 10.1088/0004-637X/744/2/197 1110.0283 44000310 16 December 2015 External links Asteroid Lightcurve Database (LCDB), query form (info https://web.archive.org/web/20110721225144/http://www.minorplanet.info/lightcurvedatabase.html 21 July 2011 ) 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 1941 1940 Whipple 1941 1942 Jablunka 001941 001941 Category:Discoveries by Karl Wilhelm Reinmuth Category:Named minor planets 19311006