1559 Kustaanheimo

Stony asteroid from the inner regions of the asteroid belt October 2019 yes 1559 Kustaanheimo #D6D6D6 File:1559Kustaanheimo (Lightcurve Inversion).png Lightcurve-based 3D-model of Kustaanheimo L. Oterma Turku Obs. 20 January 1942 (1559) Kustaanheimo 1942 BF1935 FP1935 HB Paul Kustaanheimo(Finnish astronomer) main-belt(inner) 4 September 2017 (JD 2458000.5) 0 82.20 yr (30,023 days) 2.7103 AU 2.0702 AU 2.3903 AU 0.1339 3.70 yr (1,350 days) 119.55° 0.2667 ms / day 3.1911° 327.92° 216.59° 9.07 0.65 km10.725 0.176 km11.395 0.103 km12.39 km (calculated)12.70 0.85 km 4.286 0.003 h4.3 0.1 hlcdb-Pravec-20164.302 0.002 h4.30435 h 0.193 0.0280.20 (assumed)0.2401 0.04550.267 0.0480.373 0.077 S 11.9012.0 1559 Kustaanheimo (provisional designation 1942 BF) is a stony asteroid from the inner regions of the asteroid belt, approximately 11 kilometers in diameter. It was discovered on 20 January 1942, by Finnish astronomer Liisi Oterma at the Iso-Heikkilä Observatory near Turku in southwest Finland. The asteroid was named after Finnish astronomer Paul Kustaanheimo (1924–1997). Orbit and classification Kustaanheimo is an asteroid from the main belt's background population that does not belong to any known asteroid family. It orbits the Sun in the inner main-belt at a distance of 2.1–2.7 AU once every 3 years and 8 months (1,350 days). Its orbit has an eccentricity of 0.13 and an inclination of 3° with respect to the ecliptic. In March 1935, the asteroid was first identified as 1935 FP at the Union Observatory in Johannesburg. The body's observation arc begins at Johannesburg in the following month, with its identification as 1935 HB, almost 7 years prior to its official discovery observation at Turku. Physical characteristics Kustaanheimo is an assumed stony S-type asteroid. Rotation period In February 2005, a rotational lightcurve of Kustaanheimo was obtained from photometric observations by American astronomer John Menke at his Menke Observatory in Barnesville, Maryland (no obs. code). Lightcurve analysis gave a rotation period of 4.286 hours with a brightness variation of 0.25 magnitude (U=3). One month later, another well-defined lightcurve by French amateur astronomer Laurent Bernasconi gave a period of 4.302 hours and an amplitude of 0.23 magnitude (U=3). In April 2016, Petr Pravec obtained an intermediary period of 4.3 hours with a brightness variation of 0.29 at the Ondřejov Observatory (U=2).lcdb-Pravec-2016 Spin axis In 2013, an international study modeled a lightcurve with a similar period of 4.30435 hours and found two spin axis of (275.0°, 29.0°) and (94.0°, 33.0°) in ecliptic coordinates (λ, β) . 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, Kustaanheimo measures between 9.07 and 12.70 kilometers in diameter and its surface has an albedo between 0.193 and 0.373. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 12.39 kilometers based on an absolute magnitude of 11.9. Naming This minor planet was named after Paul Kustaanheimo (1924–1997), a Finnish astronomer at the Helsinki University Observatory who made important contributions to celestial mechanics and the theory of relativity and best known for his K-S transformation. In 1969, he was appointed professor of astronomy at the University of Helsinki after the retirement of Gustaf Järnefelt (also see 1558 Järnefelt). The official 1559 naming citation was published by the Minor Planet Center on 20 February 1976 (M.P.C. 3930). Notes lcdb-Pravec-2016 Lightcurve plot of (1559) Kustaanheimo by Petr Prave at Ondrejov Observatory (2016). Rotation period of 4.3 hours with an amplitude of 0.29 magnitude. Quality Code of 2. Summary figures at Ondrejov Asteroid Photometry Project and the LCDB References 30em 2017-07-04 last obs. JPL Small-Body Database Browser: 1559 Kustaanheimo (1942 BF) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001559 Jet Propulsion Laboratory 20 September 2017 Dictionary of Minor Planet Names – (1559) Kustaanheimo Schmadel Lutz D. Springer Berlin Heidelberg 123 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1560 (1559) Kustaanheimo Observatory museum Biographies: 1900s — Kustaanheimo, Paul (1924–1997) University of Helsinky Hannu Karttunen http://www.astro.helsinki.fi/museo/1900s.shtml dead https://web.archive.org/web/20110616061231/http://www.astro.helsinki.fi/museo/1900s.shtml 16 June 2011 1559 Kustaanheimo (1942 BF) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1559 20 September 2017 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 Asteroids and comets rotation curves – (1559) Kustaanheimo Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page4cou.html#001559 20 September 2017 1 April 2019 https://web.archive.org/web/20190401181659/http://obswww.unige.ch/~behrend/page4cou.html#001559 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 20 September 2017 1559 20 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 20 September 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 John Menke Walt Cooney John Gross Dirk Terrell David Higgins October 2008 Asteroid Lightcurve Analysis at Menke Observatory http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2008MPBu...35..155M The Minor Planet Bulletin 35 4 155–160 1052-8091 2008MPBu...35..155M 20 September 2017 6 J. Hanus J. Durech M. Broz A. Marciniak B. D. Warner F. Pilcher R. Stephens R. Behrend B. Carry D. Capek P. Antonini M. Audejean K. Augustesen E. Barbotin P. Baudouin A. Bayol L. Bernasconi W. Borczyk J.-G. Bosch E. Brochard L. Brunetto S. Casulli A. Cazenave S. Charbonnel B. Christophe F. Colas J. Coloma M. Conjat W. Cooney H. Correira V. Cotrez A. Coupier R. Crippa M. Cristofanelli Ch. Dalmas C. Danavaro C. Demeautis T. Droege R. Durkee N. Esseiva M. Esteban M. Fagas G. Farroni M. Fauvaud S. Fauvaud F. Del Freo L. Garcia S. Geier C. Godon K. Grangeon H. Hamanowa H. Hamanowa N. Heck S. Hellmich D. Higgins R. Hirsch M. Husarik T. Itkonen O. Jade K. Kaminski P. Kankiewicz A. Klotz R. A. Koff A. Kryszczynska T. Kwiatkowski A. Laffont A. Leroy J. Lecacheux Y. Leonie C. Leyrat F. Manzini A. Martin G. Masi D. Matter J. Michalowski M. J. Michalowski T. Michalowski J. Michelet R. Michelsen E. Morelle S. Mottola R. Naves J. Nomen J. Oey W. Ogloza A. Oksanen D. Oszkiewicz Pä ä kkö P. nen M. Paiella H. Pallares J. Paulo M. Pavic B. Payet M. Polinska D. Polishook R. Poncy Y. Revaz C. Rinner M. Rocca A. Roche D. Romeuf R. Roy H. Saguin P. A. Salom S. Sanchez G. Santacana T. Santana-Ros J.-P. Sareyan K. Sobkowiak S. Sposetti D. Starkey R. Stoss J. Strajnic J.-P. Teng B. Trégon A. Vagnozzi F. P. Velichko N. Waelchli K. Wagrez H. Wücher March 2013 Asteroids' physical models from combined dense and sparse photometry and scaling of the YORP effect by the observed obliquity distribution http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2013A&A...551A..67H Astronomy and Astrophysics 551 16 2013A&A...551A..67H 10.1051/0004-6361/201220701 20 September 2017 1301.6943 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 1559 1558 Järnefelt 1559 1560 Strattonia 001559 Category:Discoveries by Liisi Oterma Category:Named minor planets 19420120