1054 Forsytia

Dark background asteroid October 2019 yes 1054 Forsytia #D6D6D6 001054-asteroid shape model (1054) Forsytia.png Shape model of Forsytia from its lightcurve K. Reinmuth Heidelberg Obs. 20 November 1925 (1054) Forsytia 1925 WD1962 DDA907 EA f ɔr ˈ s ɪ t i əSunset Western Garden Book, 1995:606–607 Forsythia (flowering plant) main-belt(outer)background 4 September 2017 (JD 2458000.5) 0 110.32 yr (40,295 days) 3.3198 AU 2.5284 AU 2.9241 AU 0.1353 5.00 yr (1,826 days) 165.01° 0.1971 ms / day 10.849° 85.888° 294.19° 42.867 11.18 km45.42 km (derived)45.47 4.3 km46.40 13.38 km46.69 15.08 km47.780 3.344 km53.04 0.71 km 7.650 0.001 h 0.035 0.0130.04 0.070.048 0.0020.05 0.030.0592 (derived)0.0648 0.0140.0750 0.0441 C (assumed) 10.1210.12 0.5110.3010.4010.4610.87 1054 Forsytia f ɔr ˈ s ɪ t i ə is a dark background asteroid, approximately 46 kilometers in diameter, from the outer regions of the asteroid belt. It was discovered on 20 November 1925, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany and assigned provisional designation 1925 WD. It is named after the flowering plant forsythia, and marks the beginning of a sequence of 28 thematically named asteroids by the discoverer. Orbit and classification Forsytia is a non-family asteroid from the main belt's background population. It orbits the Sun in the outer asteroid belt at a distance of 2.5–3.3 AU once every 5.00 years (1,826 days; semi-major axis of 2.92 AU). Its orbit has an eccentricity of 0.14 and an inclination of 11° with respect to the ecliptic. The asteroid was first observed as A907 EA at Heidelberg in March 1907. The body's observation arc begins with its official discovery observation in November 1925. Naming This minor planet was named after forsythia, a genus of flowering shrubs in the family Oleaceae. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 100). Reinmuth's flowers Due to his many discoveries, Karl Reinmuth submitted a large list of 66 newly named asteroids in the early 1930s. The list covered his discoveries with numbers between 1009 (1009) and 1200 (1200). This list also contained a sequence of 28 asteroids, starting with this asteroid, that were all named after plants, in particular flowering plants (also see list of minor planets named after animals and plants). Physical characteristics Forsytia is an assumed carbonaceous C-type asteroid. Rotation period In March 2002, a rotational lightcurve of Forsytia was obtained from photometric observations by American amateur astronomer John Gross at his Sonoran Skies Observatory (G94) in Arizona. Lightcurve analysis gave a well-defined rotation period of 7.650 hours with a brightness amplitude of 0.23 magnitude (U=3). 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, Forsytia measures between 42.867 and 53.04 kilometers in diameter and its surface has an albedo between 0.035 and 0.0750. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0592 and a diameter of 45.42 kilometers based on an absolute magnitude of 10.4. References 30em 2017-07-02 last obs. JPL Small-Body Database Browser: 1054 Forsytia (1925 WD) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001054 Jet Propulsion Laboratory 10 January 2018 Dictionary of Minor Planet Names https://archive.org/details/dictionaryminorp00schm limited Schmadel Lutz D. Springer Berlin Heidelberg (1054) Forsytia 90 2007 10.1007/978-3-540-29925-7_1055 978-3-540-00238-3 1054 Forsytia (1925 WD) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1054 10 January 2018 Asteroid 1054 Forsytia – Nesvorny HCM Asteroid Families V3.0 Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1054+Forsytia 24 October 2019 4 October 2020 https://web.archive.org/web/20201004033609/https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1054+Forsytia dead 1054 10 January 2018 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 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 The Astrophysical Journal Letters 759 1 5 2012ApJ...759L...8M 10.1088/2041-8205/759/1/L8 1209.5794 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 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 Joseph R. Masiero C. Nugent A. K. Mainzer E. L. Wright J. M. Bauer R. M. Cutri T. Grav E. Kramer S. Sonnett October 2017 NEOWISE Reactivation Mission Year Three: Asteroid Diameters and Albedos The Astronomical Journal 154 4 10 2017AJ....154..168M 10.3847/1538-3881/aa89ec 1708.09504 free 6 C. R. Nugent A. Mainzer J. Masiero J. Bauer R. M. Cutri T. Grav E. Kramer S. Sonnett R. Stevenson E. L. Wright December 2015 NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos The Astrophysical Journal 814 2 13 2015ApJ...814..117N 10.1088/0004-637X/814/2/117 1509.02522 9341381 Gross, John September 2003 Sonoran Skies Observatory lightcurve results for asteroids 1054, 1390, 1813 1838, 2988, 3167, 4448, and 5262 The Minor Planet Bulletin 30 3 44–46 1052-8091 2003MPBu...30...44G 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 Icarus 261 34–47 2015Icar..261...34V 10.1016/j.icarus.2015.08.007 1506.00762 53493339 External links Lightcurve Database Query (LCDB), at www.minorplanet.info 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 – Geneva Observatory, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 1054 1053 Vigdis 1054 1055 Tynka 001054 Category:Discoveries by Karl Wilhelm Reinmuth Category:Named minor planets 19251120