13006 Schwaar

Phocaea asteroid October 2019 yes 13006 Schwaar #D6D6D6 12 January 1983 B. A. Skiff Anderson Mesa Stn. (13006) Schwaar 1983 AC 11990 DH Pierre–Yves Schwaar(American amateur astronomer) main-beltPhocaea 4 September 2017 (JD 2458000.5) 0 34.21 yr (12,495 days) 2.7336 AU 1.8143 AU 2.2739 AU 0.2021 3.43 yr (1,252 days) 29.457° 0.2874 ms / day 28.523° 129.27° 358.22° 5.04 km (calculated)5.325 0.0525.892 0.113 km 6.8 h 0.182 0.0380.1850 0.02810.23 (assumed) S 13.613.713.97 0.22 13006 Schwaar, provisional designation 1983 AC 1, is a stony Phocaea asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 12 January 1983, by American astronomer Brian Skiff at Lowell's Anderson Mesa Station in Flagstaff, Arizona. The asteroid was named after amateur astronomer Pierre–Yves Schwaar. Orbit and classification Schwaar is a member of the Phocaea family (701), a rather small group of asteroids with similar orbital characteristics, named after its largest member, 25 Phocaea. It orbits the Sun in the inner main-belt at a distance of 1.8–2.7 AU once every 3 years and 5 months (1,252 days). Its orbit has an eccentricity of 0.20 and an inclination of 29° with respect to the ecliptic. No precoveries were taken. The asteroid's observation arc begins 20 days after its discovery. Physical characteristics Schwaar has been characterized as a S-type asteroid by Pan-STARRS photometric survey. Lightcurves A rotational lightcurve of Schwaar was obtained from photometric observations made at the Hunters Hill Observatory (E14), Australia, and collaborating stations in December 2006. The lightcurve gave a rotation period of 6.8 hours with a brightness variation of 0.17 in magnitude (U=3-). Diameter and albedo According to the survey carried out by the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, Schwaar measures 5.3 and 5.9 kilometers in diameter and its surface has an albedo of 0.182 and 0.185, respectively, while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for members of the Phocaea family of 0.23, and calculates a diameter of 5.0 kilometers with an absolute magnitude of 13.7. Naming This minor planet was named in memory amateur astronomer Pierre–Yves Schwaar (1946–2000), member of the Saguaro Astronomy Club (SAC), telescope maker, and photographer of the night sky. The official naming citation was published by the Minor Planet Center on 9 January 2001 (M.P.C. 41939). The native Swiss amateur astronomer and immigrant to the U.S. was also an inventor and master craftsman, a model rocketeer, an USAF aircraft mechanic, a Vietnam veteran, and an eclipse chaser. References 30em 2017-03-29 last obs. JPL Small-Body Database Browser: 13006 Schwaar (1983 AC1) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2013006 Jet Propulsion Laboratory 24 June 2017 Dictionary of Minor Planet Names – (13006) Schwaar Schmadel Lutz D. Springer Berlin Heidelberg 791 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_8722 (13006) Schwaar 13006 Schwaar (1983 AC1) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=13006 25 May 2016 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 25 May 2016 Asteroid 13006 Schwaar – Nesvorny HCM Asteroid Families V3.0 Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=13006+Schwaar#Asteroid%2013006%20SchwaarEAR-A-VARGBDET-5-NESVORNYFAM-V3.0 27 October 2019 https://web.archive.org/web/20201107105455/https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=13006+Schwaar#Asteroid%2013006%20SchwaarEAR-A-VARGBDET-5-NESVORNYFAM-V3.0 7 November 2020 dead 13006 25 May 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 http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...90M The Astrophysical Journal 741 2 25 2011ApJ...741...90M 10.1088/0004-637X/741/2/90 1109.6407 25 May 2016 David Higgins Julian Oey September 2007 Asteroid Lightcurve Analysis at Hunters Hill Observatory and Collaborating Stations - December 2006 - April 2007 http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2007MPBu...34...79H The Minor Planet Bulletin 34 3 79–80 1052-8091 2007MPBu...34...79H 25 May 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 25 May 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 3 December 2016 External links Pierre-Yves Schwaar (14 May 1946 — 6 March 2000), Saguaro Astronomy Club, April 2000 Sentinel-Schwaar Star Gaze, Joe Orman's website 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 (10001)-(15000) – Minor Planet Center 13006 13005 Stankonyukhov 13006 013006 Category:Discoveries by Brian A. Skiff Category:Named minor planets 19830112