1253 Frisia

Themistian asteroid October 2019 yes 1253 Frisia #D6D6D6 K. Reinmuth Heidelberg Obs. 9 October 1931 (1253) Frisia 1931 TV 11933 BO1937 VN1948 SE1954 UC1959 RC1971 UE 3 ˈ f r ɪ z i əFrisian FrisiaFrisian Islands(Home of the Frisian people) main-belt(outer)Themis 4 September 2017 (JD 2458000.5) 0 85.48 yr (31,220 days) 3.8295 AU 2.4952 AU 3.1624 AU 0.2110 5.62 yr (2,054 days) 78.227° 0.1753 ms / day 1.3468° 40.015° 355.23° 18.71 km (calculated)19.09 0.19 km21.682 0.043 km22.995 0.121 km24.00 7.16 km 14.557 0.002 h18.500 0.0096 h 0.04 0.030.077 0.0120.08 (assumed)0.0839 0.0105 C (assumed) 11.512.0012.02 0.2612.088 0.001 (R)12.13 1253 Frisia, provisional designation 1931 TV 1, is a carbonaceous Themistian asteroid from the outer regions of the asteroid belt, approximately 20 kilometers in diameter. Discovered by Karl Reinmuth at Heidelberg Observatory in 1931, the asteroid was later named after the region of Frisia and the Frisian Islands. Discovery Frisia was discovered on 9 October 1931, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany. It was independently discovered by Soviet astronomer Pelageya Shajn at the Simeiz Observatory on the Crimean peninsula on 6 November 1931. The body's observation arc begins at Heidelberg eleven days after its official discovery observation. Orbit and classification Frisia is a Themistian asteroid that belongs to the Themis family (602), a very large family of carbonaceous asteroids, named after 24 Themis.23 It orbits the Sun in the outer main-belt at a distance of 2.5–3.8 AU once every 5 years and 7 months (2,054 days). Its orbit has an eccentricity of 0.21 and an inclination of 1° with respect to the ecliptic. Physical characteristics Frisia is an assumed carbonaceous C-type asteroid, which corresponds to the overall spectral type of the Themis family.23 Rotation period In November 2011, a rotational lightcurve of Frisia was obtained by astronomers at the University of North Dakota (730) and the Badlands Observatory in North Dakota, United States. Lightcurve analysis gave a rotation period of 14.557 hours with a brightness variation of 0.16 magnitude (U=2). Photometric observations in the R-band at the Palomar Transient Factory in September 2011, gave a somewhat similar period of 18.500 hours and an amplitude of 0.15 magnitude (U=2). Diameter and albedo According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Frisia measures between 19.09 and 24.00 kilometers in diameter and its surface has an albedo between 0.04 and 0.0839. The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.08 and calculates a diameter of 18.71 kilometers based on an absolute magnitude of 12.0. Naming This minor planet was named after region of Frisia and its Frisian Islands, located on the southeastern coast of the North Sea. The region is the homeland of the Frisian people and mostly part of the Netherlands but its islands stretch along the coast up to Germany and Denmark. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 115). References 30em 2017-03-31 last obs. JPL Small-Body Database Browser: 1253 Frisia (1931 TV1) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001253 Jet Propulsion Laboratory 19 September 2017 Dictionary of Minor Planet Names – (1253) Frisia Schmadel Lutz D. Springer Berlin Heidelberg 104 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1254 (1253) Frisia 1253 Frisia (1931 TV1) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1253 19 September 2017 Asteroid 1253 Frisia – Nesvorny HCM Asteroid Families V3.0 Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1253+Frisia#Asteroid%201253%20FrisiaEAR-A-VARGBDET-5-NESVORNYFAM-V3.0 26 October 2019 https://web.archive.org/web/20201004041008/https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1253+Frisia#Asteroid%201253%20FrisiaEAR-A-VARGBDET-5-NESVORNYFAM-V3.0 4 October 2020 dead D. Nesvorný M. Broz V. Carruba December 2014 Identification and Dynamical Properties of Asteroid Families Asteroids IV 297–321 2015aste.book..297N 10.2458/azu_uapress_9780816532131-ch016 1502.01628 9780816532131 6 Joseph R. Masiero T. Grav A. K. Mainzer C. R. Nugent J. M. Bauer R. Stevenson S. Sonnett August 2014 Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014ApJ...791..121M The Astrophysical Journal 791 2 11 2014ApJ...791..121M 10.1088/0004-637X/791/2/121 1406.6645 19 September 2017 1253 19 September 2017 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 19 September 2017 6 C. R. Nugent A. Mainzer J. Bauer R. M. Cutri E. A. Kramer T. Grav J. Masiero S. Sonnett E. L. Wright September 2016 NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos The Astronomical Journal 152 3 12 2016AJ....152...63N 10.3847/0004-6256/152/3/63 1606.08923 free 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 Gartrelle, Gordon M. April 2012 Lightcurve Results for Eleven Asteroids http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012MPBu...39...40G The Minor Planet Bulletin 39 2 40%–46 1052-8091 2012MPBu...39...40G 19 September 2017 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 19 September 2017 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 19 September 2017 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 1253 1252 Celestia 1253 1254 Erfordia 001253 Category:Discoveries by Karl Wilhelm Reinmuth Category:Named minor planets 19311009