1256 Normannia

Hilda asteroid and slow rotator October 2019 yes 1256 Normannia #D6D6D6 001256-asteroid shape model (1256) Normannia.png Shape model of Normannia from its lightcurve K. Reinmuth Heidelberg Obs. 8 August 1932 (1256) Normannia 1932 PD1930 KO n ɔr ˈ m æ n i əNormannic Normans/Normandy(people/region in France) main-belt(outer)Hildabackground 4 September 2017 (JD 2458000.5) 0 87.43 yr (31,933 days) 4.1995 AU 3.5903 AU 3.8949 AU 0.0782 7.69 yr (2,808 days) 5.5363° 0.1282 ms / day 4.1732° 236.94° 101.06° 68.253 0.436 km69.02 km (derived)69.22 2.8 km73.26 2.34 km 6.4 0.1h (poor)lcdb-Aznar-20146.8 h (poor)18.13 0.02 h18.8 (poor) h488.063 7.4017 h 0.0364 (derived)0.046 0.0030.05 0.010.0504 0.0040.052 0.010 Tholen DDB–V 0.737U–B 0.239 9.475 0.002 (R)9.669.749.94 0.7110.02 1256 Normannia (prov. designation: 1932 PD) is a dark Hilda asteroid and slow rotator from the outermost regions of the asteroid belt, approximately 69 km mi off 1 us in diameter. It was discovered on 8 August 1932, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in Germany. The asteroid was likely named after the Normans who gave their name to the region of Normandy in France. Orbit and classification Normannia is a member of the Hilda group of asteroids, which are in 3:2 orbital resonance with the gas-giant Jupiter. When applying the Hierarchical Clustering Method to its proper orbital elements, Normannia is a background asteroid that does not belong to neither the Hilda family (001) nor the Schubart family (002), the only two asteroid families known within the Hilda group.23 It orbits the Sun in the outermost asteroid belt at a distance of 3.6–4.2 AU once every 7 years and 8 months (2,808 days; semi-major axis of 3.89 AU). Its orbit has an eccentricity of 0.08 and an inclination of 4° with respect to the ecliptic. The body's observation arc begins with its first identification as 1930 KO at Lowell Observatory in May 1930, more than two years prior to its official discovery observation at Heidelberg. Naming This minor planet was probably named after the Normans ("Norseman"), mainly Danish and Norwegian Vikings who settled in the historical region of Normandy in northwestern France. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 115). Physical characteristics In the Tholen classification, Normannia is a dark D-type asteroid. Observations by Pan-STARRS and by the Wide-field Infrared Survey Explorer (WISE) also characterized the asteroid as a D-type. Rotation period In September 2010, a rotational lightcurve of Normannia was obtained from photometric observations by astronomers at the Palomar Transient Factory in California. Lightcurve analysis gave a rotation period of 488.063 hours with a brightness amplitude of 0.39 magnitude (U=2). This makes it one of the Top-100 slow rotators known to exist. Other observations gave several poor lightcurves with a much shorter period between 6.4 and 18.8 hours (U=1/1/1/n.a.).lcdb-Aznar-2014 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 WISE telescope, Normannia measures between 68.253 and 73.26 kilometers in diameter and its surface has an albedo between 0.046 and 0.052. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0364 and a diameter of 69.02 kilometers based on an absolute magnitude of 10.02. Notes lcdb-Aznar-2014 Aznar (2014) web: Observation from 24 March 2014: rotation period 6.4 0.1 hours with a brightness amplitude of 0.09 0.01 mag. Summary figures at the LCDB References 30em 2017-10-28 last obs. JPL Small-Body Database Browser: 1256 Normannia (1932 PD) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001256 Jet Propulsion Laboratory 5 December 2017 Schmadel Lutz D. Dictionary of Minor Planet Names Springer Berlin Heidelberg (1256) Normannia 104 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1257 1256 Normannia (1932 PD) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1256 5 December 2017 6 T. Grav A. K. Mainzer J. Bauer J. Masiero T. Spahr R. S. McMillan R. Walker R. Cutri E. Wright P. R. Eisenhardt E. Blauvelt E. DeBaun D. Elsbury T. Gautier S. Gomillion E. Hand A. Wilkins January 2012 WISE/NEOWISE Observations of the Hilda Population: Preliminary Results http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...744..197G The Astrophysical Journal 744 2 15 2012ApJ...744..197G 10.1088/0004-637X/744/2/197 1110.0283 44000310 5 December 2017 Gartrelle, Gordon M. April 2012 Lightcurve Results for Eleven Asteroids http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012MPBu...39...40G The Minor Planet Bulletin 39 2 40%–46 1052-8091 2012MPBu...39...40G 5 December 2017 Asteroid 1256 Normannia – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1256 29 October 2019 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 119280014 1256 5 December 2017 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 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) Richard P. Binzel Linda M. Sauter February 1992 Trojan, Hilda, and Cybele asteroids - New lightcurve observations and analysis http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=1992Icar...95..222B Icarus 95 2 222–238 0019-1035 1992Icar...95..222B 10.1016/0019-1035(92)90039-A 5 December 2017 6 M. Dahlgren J. F. Lahulla C.-I. Lagerkvist J. Lagerros S. Mottola A. Erikson M. Gonano-Beurer M. Di Martino June 1998 A Study of Hilda Asteroids. V. Lightcurves of 47 Hilda Asteroids Icarus 133 2 247–285 1998Icar..133..247D 10.1006/icar.1998.5919 6 Adam Waszczak Chan-Kao Chang Eran O. Ofek Russ Laher Frank Masci David Levitan Jason Surace Yu-Chi Cheng Wing-Huen Ip Daisuke Kinoshita George Helou Thomas A. Prince Shrinivas Kulkarni September 2015 Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry The Astronomical Journal 150 3 35 2015AJ....150...75W 10.1088/0004-6256/150/3/75 1504.04041 8342929 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 5 December 2017 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 1256 1255 Schilowa 1256 1257 Móra 001256 Category:Discoveries by Karl Wilhelm Reinmuth Category:Named minor planets 001256 001256 19320808