1478 Vihuri

Main-belt asteroid October 2019 yes 1478 Vihuri #D6D6D6 6 February 1938 Y. Väisälä Turku Obs. (1478) Vihuri 1938 CF1934 CG A. Vihuri (philanthropist) main-belt(inner) 4 September 2017 (JD 2458000.5) 0 110.54 yr (40,374 days) 2.6885 AU 2.2439 AU 2.4662 AU 0.0901 3.87 yr (1,415 days) 216.50° 0.2545 ms / day 7.8326° 318.57° 161.04° 8.45 km (derived)9.52 1.30 km11.19 0.79 km 19.5 h 0.126 0.0680.127 0.0190.20 (assumed) SB–V = 0.840U–B = 0.570 12.44 0.4412.6312.7312.97 1478 Vihuri, provisional designation 1938 CF, is a stony asteroid from the inner regions of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 6 February 1938, by Finnish Yrjö Väisälä at Turku Observatory in Southwest Finland. The asteroid was named after a Finnish philanthropist by the name of A. Vihuri. Orbit and classification Vihuri orbits the Sun in the inner main-belt at a distance of 2.2–2.7 AU once every 3 years and 10 months (1,415 days). Its orbit has an eccentricity of 0.09 and an inclination of 8° with respect to the ecliptic.0 The asteroid's observation arc begins 11 days prior to its official discovery observation. A precovery taken at Lowell Observatory in 1906, as well as identification 1934 CG made at Uccle in 1934, remained unused. Physical characteristics Rotation period In December 1983, a rotational lightcurve was obtained form photometric observations by American astronomer Richard P. Binzel. Analysis of the provisional lightcurve gave a rotation period of 19.5 hours with a brightness variation of 0.23 magnitude (U=1). As of 2017, no additional lightcurves of Vihuri have been obtained. Diameter and albedo According to the surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Vihuri measures 9.52 and 11.19 kilometers in diameter, and its surface has an albedo of 0.126 and 0.127, respectively. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony S-type asteroid of 0.20 and calculates a diameter of 8.45 kilometers with an absolute magnitude of 12.73. Naming This minor planet was named for Finnish philanthropist A. Vihuri, a ship owner and supporter of science and arts. The official 1478 naming citation was published by the Minor Planet Center on 15 July 1968 (M.P.C. 2882). References 30em 2017-07-05 last obs. JPL Small-Body Database Browser: 1478 Vihuri (1938 CF) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001478 https://web.archive.org/web/20200918053329/https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001478 dead 18 September 2020 Jet Propulsion Laboratory 25 July 2017 Dictionary of Minor Planet Names – (1478) Vihuri Schmadel Lutz D. Springer Berlin Heidelberg 118 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1479 (1478) Vihuri 1478 Vihuri (1938 CF) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1478 16 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 1478 16 December 2016 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 (online, AcuA catalog p. 153) 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 https://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 16 December 2016 Binzel, R. P. October 1987 A photoelectric survey of 130 asteroids https://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=1987Icar...72..135B Icarus 72 1 135–208 0019-1035 1987Icar...72..135B 10.1016/0019-1035(87)90125-4 16 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 https://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 16 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 – Observatoire de Genève, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 1478 1477 Bonsdorffia 1478 1479 Inkeri 001478 Category:Discoveries by Yrjö Väisälä Category:Named minor planets 19380206