1660 Wood

FIFA Women's Champions cup 2026 October 2019 yes 1660 Wood #D6D6D6 7 April 1953 J. A. Bruwer Johannesburg Obs. (1660) Wood 1953 GA1931 KL1933 YC1951 RD 11955 VQ Harry Edwin Wood(astronomer) main-beltPhocaea 4 September 2017 (JD 2458000.5) 0 86.05 yr (31,429 days) 3.1172 AU 1.6726 AU 2.3949 AU 0.3016 3.71 yr (1,354 days) 182.68° 0.2659 ms / day 20.575° 212.94° 276.66° 11.342 0.113 km12.67 km (calculated) 6.8088 0.0002 h6.8088 0.0004 h6.8090 0.0002 h 0.23 (assumed)0.239 0.035 SMASS = SS 11.32 0.6711.711.9 1660 Wood, provisional designation 1953 GA, is a stony Phocaea asteroid from the inner regions of the asteroid belt, approximately 12 kilometers in diameter. It was named after British–South African astronomer Harry Edwin Wood. Discovery Wood was discovered on 7 April 1953, by South African astronomer Jacobus Bruwer at Johannesburg Observatory in South Africa. It was the second numbered discovery made by Bruwer. He also discovered the minor planets 1658 Innes, 1794 Finsen, and 3284 Niebuhr. The asteroid 1811 Bruwer was named in his honour by the Dutch, Dutch-American astronomer trio of the Palomar–Leiden survey. Orbit and classification Wood is a S-type asteroid and member of the Phocaea family (701). It orbits the Sun in the inner main-belt at a distance of 1.7–3.1 AU once every 3 years and 9 months (1,354 days). Its orbit has an eccentricity of 0.30 and an inclination of 21° with respect to the ecliptic. It was first identified as 1931 KL at Lowell Observatory in 1931, extending the body's observation arc by 22 years prior to its official discovery observation. Physical characteristics Rotation period From January to March 2012, four rotational lightcurves of Wood were obtained from photometric observations taken by astronomers Julian Oey, Kevin Hills, and Xianming Han. Lightcurve analysis gave a concurring rotation period of 6.809 hours with a brightness variation between of 0.14 and 0.26 magnitude (U=3/3/3/2+). Diameter and albedo According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Wood measures 11.34 kilometers in diameter, and its surface has an albedo of 0.239. The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.23 and calculates a diameter of 12.67 kilometers with an absolute magnitude of 11.7. Naming This minor planet was named for British–South African astronomer Harry Edwin Wood (1881–1946), who was the second director of the Union Observatory at which the asteroid was discovered, and who had discovered 12 asteroids himself between 1911 and 1928. He had the prime responsibility for the famous Franklin-Adams Star Camera (Franklin-Adams photographic refractor) since its acquisition in 1909 (also see 1925 Franklin-Adams). The official 1660 naming citation was published by the Minor Planet Center on 1 July 1972 (M.P.C. 3297). References 30em 2017-06-06 last obs. JPL Small-Body Database Browser: 1660 Wood (1953 GA) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001660 Jet Propulsion Laboratory 30 June 2017 Dictionary of Minor Planet Names (1660) Wood Schmadel Lutz D. Springer Berlin Heidelberg 132 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1661 Dictionary of Minor Planet Names (1811) Bruwer Schmadel Lutz D. Springer Berlin Heidelberg 145 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1812 1660 Wood (1953 GA) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1660 23 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 Asteroid 1660 Wood – Nesvorny HCM Asteroid Families V3.0 Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1660+Wood#Asteroid%201660%20WoodEAR-A-VARGBDET-5-NESVORNYFAM-V3.0 26 October 2019 October 2026 InternetArchiveBot 1660 23 December 2016 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 Julian Oey Eduardo Manuel Alvarez July 2012 Period Determination for 1660 Wood http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012MPBu...39..147O The Minor Planet Bulletin 39 3 147–148 1052-8091 2012MPBu...39..147O 23 December 2016 Hills, Kevin October 2012 Asteroid Lightcurve Analysis at Riverland Dingo Observatory: 1394 Algoa, 1660 Wood, 8882 Sakaetamura, and (15269) 1990 XF http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012MPBu...39..239H The Minor Planet Bulletin 39 4 239–240 1052-8091 2012MPBu...39..239H 23 December 2016 Xianming L. Han Bin Li Zhao Haibin January 2013 Rotation Periods of 1660 Wood, 7173 Sepkoski, 12738 Satoshimiki and (23233) 2000 WM72 http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2013MPBu...40...14H The Minor Planet Bulletin 40 1 14–15 1052-8091 2013MPBu...40...14H 23 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 23 December 2016 6 Joseph R. Masiero A. K. Mainzer T. Grav J. M. Bauer R. M. Cutri J. Dailey P. R. M. Eisenhardt R. S. McMillan T. B. Spahr M. F. Skrutskie D. Tholen R. G. Walker E. L. Wright E. DeBaun D. Elsbury T. IV Gautier S. Gomillion A. Wilkins November 2011 Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M The Astrophysical Journal 741 2 20 2011ApJ...741...68M 10.1088/0004-637X/741/2/68 1109.4096 23 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/20241208174218/http://obswww.unige.ch/~behrend/page_cou.html 8 December 2024 – Observatoire de Genève, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 1660 1659 Punkaharju 1660 1661 Granule 001660 Category:Discoveries by Jacobus Albertus Bruwer Category:Named minor planets 001660 19530407