1537 Transylvania

Main-belt asteroid October 2019 yes 1537 Transylvania #D6D6D6 File:001537-asteroid shape model (1537) Transylvania.png A lightcurve-derived shape model of Transylvania G. Strommer Konkoly Obs. 27 August 1940 (1537) Transylvania 1940 QA1940 QNA903 VB Transylvania(region in Romania) main-belt(outer) 4 September 2017 (JD 2458000.5) 0 113.42 yr (41,428 days) 3.9677 AU 2.1361 AU 3.0519 AU 0.3001 5.33 yr (1,947 days) 143.95° 0.1849 ms / day 3.8591° 230.07° 148.20° 13.60 km (derived)13.77 1.5 km17.48 1.16 km20.288 0.256 km20.29 0.26 km21.49 1.58 km 12 h 0.05 0.000.052 0.0060.067 0.0100.1047 (derived)0.1619 0.041 C 11.9012.12 0.4912.3012.3212.4 1537 Transylvania (provisional designation 1940 QA) is a carbonaceous asteroid and long-lost minor planet from the outer regions of the asteroid belt, approximately 17 kilometers in diameter. Discovered by Gyula Strommer in 1940, it was later named after region of Transylvania, where the discoverer was born. Discovery and rediscovery Transylvania was discovered on 27 August 1940, by Hungarian astronomer Gyula Strommer at the Konkoly Observatory near Budapest, Hungary. Observations of the asteroid continued at Konkoly until February 1942. It became a lost minor planet until Spring 1981, when astronomer Leif Kahl Kristensen at the University of Aarhus rediscovered it based on contemporary observations at Palomar Observatory. Kristensen was able to show that Transylvania was first observed as A903 VB at Heidelberg Observatory in October 1903, and, after its observations at Konkoly in the early 1940s, it was again observed at Goethe Link Observatory in December 1962, and at Palomar in February 1981. Remaining lost minor planets At the same time, Kristensen also rediscovered 452 Hamiltonia. With these two rediscoveries in 1981, only nine numbered minor planets remained unobserved since their discoveries: 330 Adalberta, 473 Nolli, 719 Albert, 724 Hapag, 843 Nicolaia, 878 Mildred, 1009 Sirene, 1026 Ingrid, and 1179 Mally. Orbit and classification Transylvania is a non-family asteroid of the main belt's background population. It orbits the Sun in the outer main-belt at a distance of 2.1–4.0 AU once every 5 years and 4 months (1,947 days). Its orbit has an eccentricity of 0.30 and an inclination of 4° with respect to the ecliptic. Physical characteristics Transylvania has been characterized as a carbonaceous C-type asteroid by PanSTARRS photometric survey. Rotation period In September 2004, a rotational lightcurve of Transylvania was obtained from photometric observations by French amateur astronomer Laurent Bernasconi. Analysis of the fragmentary lightcurve gave a rotation period of 12 hours with a brightness amplitude of 0.15 magnitude (U=1). As of 2017, no other lightcurve has been obtained, and Transylvania's period is still uncertain. Diameter and albedo According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Transylvania measures between 13.77 and 21.49 kilometers in diameter and its surface has an albedo between 0.05 and 0.1619. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1047 and a diameter of 13.60 kilometers based on an absolute magnitude of 12.4. Naming This minor planet was named after the historical region of Transylvania, located in what is now Romania. Formerly, it was part of the Austro-Hungarian Empire. Transylvania is also the birthplace of the discoverer Gyula Strommer (1920–1995). Transylvania was his only minor-planet discovery. The official naming citation was published by the Minor Planet Center on 1 February 1980 (M.P.C. 5182). References 30em 2017-03-31 last obs. JPL Small-Body Database Browser: 1537 Transylvania (1940 QA) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001537 Jet Propulsion Laboratory 20 September 2017 Dictionary of Minor Planet Names – (1537) Transylvania Schmadel Lutz D. Springer Berlin Heidelberg 122 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1538 (1537) Transylvania 1537 Transylvania (1940 QA) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1537 20 September 2017 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 20 September 2017 Asteroids and comets rotation curves – (1537) Transylvania Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page4cou.html#001537 20 September 2017 1 April 2019 https://web.archive.org/web/20190401181659/http://obswww.unige.ch/~behrend/page4cou.html#001537 dead L. K. Kristensen J. Gibson C.-Y. Shao E. Bowell B. G. Marsden April 1981 (1537) Transylvania and (452) Hamiltonia http://www.cbat.eps.harvard.edu/iauc/03500/03595.html#Item1 IAU Circ. 3595 1 1981IAUC.3595....1K 20 September 2017 1537 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 46350317 20 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 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) E. F. Tedesco P. V. Noah M. Noah S. D. Price October 2004 IRAS Minor Planet Survey V6.0 https://sbnarchive.psi.edu/pds3/iras/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab NASA Planetary Data System 12 IRAS-A-FPA-3-RDR-IMPS-V6.0 2004PDSS...12.....T 22 October 2019 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 53493339 20 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 1537 1536 Pielinen 1537 1538 Detre 001537 Category:Named minor planets 19400827 01537