1879 Broederstroom

Stony main-belt asteroid October 2019 yes 1879 Broederstroom #D6D6D6 16 October 1935 H. van Gent Johannesburg Obs.(Leiden Southern Station) (1879) Broederstroom 1935 UN1950 AD1950 CV1950 DB 11972 RS 11984 HJ 2 Broederstroom (town) main-beltFlora 4 September 2017 (JD 2458000.5) 0 81.46 yr (29,752 days) 2.5784 AU 1.9131 AU 2.2458 AU 0.1481 3.37 yr (1,229 days) 85.731° 0.2929 ms / day 1.7234° 249.98° 173.96° 7.14 km (calculated)7.444 0.235 km7.66 0.52 km 3.01555 0.00006 h3.0159 0.0115 h3.020 0.010 h 0.24 (assumed)0.242 0.0310.319 0.048 S 12.5012.766 0.001 (R)12.780 0.100 (R)12.8012.913.45 0.28 1879 Broederstroom, provisional designation 1935 UN, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 16 October 1935, by Dutch astronomer Hendrik van Gent at the Leiden Southern Station (081), annex to the Johannesburg Observatory in South Africa. The asteroid was named after the South African village of Broederstroom. Orbit and classification Broederstroom is a member of the Flora family. It orbits the Sun in the inner main-belt at a distance of 1.9–2.6 AU once every 3 years and 4 months (1,229 days). Its orbit has an eccentricity of 0.15 and an inclination of 2° with respect to the ecliptic. No precoveries were taken, and no prior identifications were made. The body's observation arc begins with its official discovery observation at Johannesburg in 1935. Physical characteristics Broederstroom has been characterized as a common stony S-type asteroid. Lightcurves In January 2007, a rotational lightcurve obtained by Italian amateur astronomer Antonio Vagnozzi gave a well-defined rotation period of 3.01555 hours with a brightness variation of 0.11 magnitude (U=3). In Spring 2014, photometry at the Palomar Transient Factory in California gave two lightcurves with a period of 3.016 and 3.02 hours and an amplitude of 0.12 magnitude (U=2/2). Diameter and albedo According to the surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Broederstroom measures 7.444 and 7.66 kilometers in diameter and its surface has an albedo of 0.242 and 0.319, respectively. The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from the asteroid 8 Flora, the family's principal body and namesake – and calculates a diameter of 7.14 kilometers with an absolute magnitude of 13.42. Naming This minor planet was named after the village Broederstroom located in the North West province of South Africa. The Leiden Southern Observatory was later located near this town for 25 years until 1982. The official naming citation was published by the Minor Planet Center on 8 April 1982 (M.P.C. 6833). References 30em 2017-03-31 last obs. JPL Small-Body Database Browser: 1879 Broederstroom (1935 UN) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001879 https://web.archive.org/web/20161220093407/http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001879 dead 20 December 2016 Jet Propulsion Laboratory 9 June 2017 Dictionary of Minor Planet Names – (1879) Broederstroom Schmadel Lutz D. Springer Berlin Heidelberg 150 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1880 (1879) Broederstroom 1879 Broederstroom (1935 UN) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1879 11 December 2016 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 11 December 2016 Asteroids and comets rotation curves – (1879) Broederstroom Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page4cou.html#001879 11 December 2016 3 August 2003 https://web.archive.org/web/20030803183423/http://obswww.unige.ch/~behrend/page4cou.html#001879 dead 1879 11 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) 6 Joseph R. Masiero A. K. Mainzer T. Grav J. M. Bauer R. M. Cutri C. Nugent M. S. Cabrera November 2012 Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759L...8M The Astrophysical Journal Letters 759 1 5 2012ApJ...759L...8M 10.1088/2041-8205/759/1/L8 1209.5794 11 December 2016 6 Chan-Kao Chang Wing-Huen Ip Ip Wing-huen Hsing-Wen Lin Yu-Chi Cheng Chow-Choong Ngeow Ting-Chang Yang Adam Waszczak Shrinivas R. Kulkarni David Levitan Branimir Sesar Russ Laher Jason Surace Thomas. A. Prince August 2015 Asteroid Spin-rate Study Using the Intermediate Palomar Transient Factory http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015ApJS..219...27C The Astrophysical Journal Supplement Series 219 2 19 2015ApJS..219...27C 10.1088/0067-0049/219/2/27 1506.08493 11 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 11 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 11 December 2016 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 1879 1878 Hughes 1879 1880 McCrosky 001879 Category:Discoveries by Hendrik van Gent Category:Named minor planets 19351016