1532 Inari

Main-belt asteroid discovered on 1938-09-16 by Yrjö Väisälä at Turku October 2019 yes 1532 Inari #D6D6D6 Y. Väisälä Turku Obs. 16 September 1938 (1532) Inari 1938 SM1933 SZ1935 BJ1936 FP 1 Lake Inari (Finnish lake) main-belt(outer)Eos 4 September 2017 (JD 2458000.5) 0 80.74 yr (29,492 days) 3.1618 AU 2.8486 AU 3.0052 AU 0.0521 5.21 yr (1,903 days) 325.80° 0.1892 ms / day 8.7769° 330.63° 122.85° 24.439 0.056 km26.759 0.099 km28.38 km (derived)29.53 0.56 km30.39 3.24 km 25 h 0.060 0.0030.0623 0.00800.078 0.0110.087 0.0390.1049 (derived) Tholen SB–V 0.840U–B 0.360 10.810.8611.50 1532 Inari (provisional designation 1938 SM) is a stony Eoan asteroid from the outer regions of the asteroid belt, approximately 28 kilometers in diameter. Discovered by Yrjö Väisälä at Turku Observatory in 1938, it was later named for Lake Inari in northern Finland. Discovery Inari was discovered on 16 September 1938, by Finnish astronomer Yrjö Väisälä at the Iso-Heikkilä Observatory near Turku, Finland. The asteroid was first identified as 1933 SZ at Simeiz Observatory in September 1933, and its observation arc begins at Nice Observatory in April 1936, more than two years prior to its official discovery observation at Turku. Orbit and classification Inari is a member the Eos family (606), one of the asteroid belt's largest families with nearly 10,000 known asteroids.23 It orbits the Sun in the outer main belt at a distance of 2.8–3.2 AU once every 5 years and 3 months (1,903 days). Its orbit has an eccentricity of 0.05 and an inclination of 9° with respect to the ecliptic. Physical characteristics In the Tholen classification, Saimaa is a featureless stony S-type asteroid. The overall spectral type for members of the Eos family is that of a K-type.23 Rotation period In January 2008, a fragmentary rotational lightcurve of Inari was obtained from photometric observations by French amateur astronomer René Roy. Lightcurve analysis gave a longer-than-average rotation period of 25 hours with a low brightness amplitude of 0.09 magnitude (U=1+). As of 2017, no secure period has been obtained. Diameter and albedo According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Inari measures between 24.439 and 30.39 kilometers in diameter and its surface has an albedo between 0.060 and 0.087. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1049 and a diameter of 28.38 kilometers based on an absolute magnitude of 10.8. Naming This minor planet was named after Lake Inari (Inarijärvi), located north of the Arctic Circle in Lapland, Finland. Lake Inari is the country's third-largest lake and one of the largest lakes in Europe. The official 1532 naming citation was published by the Minor Planet Center on 20 February 1976 (M.P.C. 3929). References 30em 2017-01-09 last obs. JPL Small-Body Database Browser: 1532 Inari (1938 SM) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001532 Jet Propulsion Laboratory 9 October 2017 Schmadel Lutz D. Dictionary of Minor Planet Names Springer Berlin Heidelberg 121 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1533 (1532) Inari 1532 Inari (1938 SM) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1532 9 October 2017 Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008) 2009 https://archive.org/details/dictionaryminorp2008schm limited 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 Asteroids and comets rotation curves – (1532) Inari Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page4cou.html#001532 9 October 2017 1 April 2019 https://web.archive.org/web/20190401181659/http://obswww.unige.ch/~behrend/page4cou.html#001532 dead 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 9 October 2017 Asteroid 1532 Inari – Nesvorny HCM Asteroid Families V3.0 Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1532+Inari#Asteroid%201532%20InariEAR-A-VARGBDET-5-NESVORNYFAM-V3.0 26 October 2019 https://web.archive.org/web/20200820065730/https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1532+Inari#Asteroid%201532%20InariEAR-A-VARGBDET-5-NESVORNYFAM-V3.0 20 August 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 1532 9 October 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 9 October 2017 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 free (online, AcuA catalog p. 153) 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 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 1532 1531 Hartmut 1532 1533 Saimaa 001532 Category:Discoveries by Yrjö Väisälä Category:Named minor planets 001532 19380916