13025 Zürich

Main-belt asteroid Zürich (disambiguation) October 2019 yes 13025 Zürich #D6D6D6 28 January 1989 P. Wild Zimmerwald Obs. (13025) Zürich 1989 BA Zürich (Swiss city) main-beltPhocaea 4 September 2017 (JD 2458000.5) 0 41.25 yr (15,066 days) 3.0429 AU 1.7221 AU 2.3825 AU 0.2772 3.68 yr (1,343 days) 279.41° 0.2680 ms / day 23.921° 342.72° 140.93° 4.89 0.10 km5.28 km (calculated) 18.53 0.02 h 0.23 (assumed)0.322 0.083 S 13.4013.6 13025 Zürich, provisional designation 1989 BA, is a stony Phocaea asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 28 January 1989, by Swiss astronomer Paul Wild at Zimmerwald Observatory near Bern, Switzerland, and later named for the Swiss city of Zürich. Orbit and classification The stony S-type asteroid 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 1.7–3.0 AU once every 3 years and 8 months (1,343 days). Its orbit has an eccentricity of 0.28 and an inclination of 24° with respect to the ecliptic. A first precovery was obtained at the Australian Siding Spring Observatory in 1975, extending the asteroid's observation arc by 14 years prior to its discovery. Lightcurve In November 2006, American astronomer Brian Warner obtained a rotational lightcurve from photometric observations taken at his Palmer Divide Observatory in Colorado. The lightcurve showed a rotation period of 18.53 0.02 hours and a brightness variation of 0.24 in magnitude (U=2+). Diameter and albedo estimates According to the survey carried out by NASA's space-based Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the asteroid measures 4.9 kilometers in diameter and its surface has a high albedo of 0.32, while the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.23 and hence calculates a somewhat larger diameter of 5.3 kilometers with an absolute magnitude of 13.6. Naming The minor planet is named after Zürich, Switzerland's largest city and economic center, located at the northwestern tip of Lake Zürich. It was founded by the Romans in the 1st century BC on the rivers Sihl and Limmat and was then called Turicum. The official naming citation was published by the Minor Planet Center on 1 November 2001 (M.P.C. 43762). References 30em 2016-09-07 last obs. JPL Small-Body Database Browser: 13025 Zurich (1989 BA) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2013025 Jet Propulsion Laboratory 24 June 2017 Dictionary of Minor Planet Names – (13025) Zürich Schmadel Lutz D. Springer Berlin Heidelberg 792 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_8727 (13025) Zürich 13025 Zurich (1989 BA) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=13025 6 April 2016 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 17 May 2016 Asteroid 13025 Zurich – Nesvorny HCM Asteroid Families V3.0 Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=13025+Zurich#Asteroid%2013025%20ZurichEAR-A-VARGBDET-5-NESVORNYFAM-V3.0 27 October 2019 https://web.archive.org/web/20200820004815/https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=13025+Zurich#Asteroid%2013025%20ZurichEAR-A-VARGBDET-5-NESVORNYFAM-V3.0 20 August 2020 dead 13025 17 May 2016 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 17 May 2016 Warner, Brian D. June 2007 Asteroid Lightcurve Analysis at the Palmer Divide Observatory - September-December 2006 http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2007MPBu...34...32W The Minor Planet Bulletin 34 2 32–37 1052-8091 2007MPBu...34...32W 6 April 2016 External links 3Kn3s98KRYw The Palmer Divide Observatory: Tour given by Brian Warner (time 4:03 min.) Lightcurve plot of 13025 Zurich, Palmer Divide Observatory, B. D. Warner (2006) 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 13025 13024 Conradferdinand 13025 (13026) 1989 CX 013025 Category:Discoveries by Paul Wild (Swiss astronomer) Category:Named minor planets 19890128