1419 Danzig

Flora asteroid October 2019 yes 1419 Danzig #D6D6D6 001419-asteroid shape model (1419) Danzig.png Modelled shape of Danzig from its lightcurve K. Reinmuth Heidelberg Obs. 5 September 1929 (1419) Danzig 1929 RF1936 RD1952 HJ 41957 WO 1A917 GA German name of thePolish city of Gdańsk main-belt(inner) Florabackground 16 February 2017 (JD 2457800.5) 0 99.90 yr (36,489 days) 2.6285 AU 1.9570 AU 2.2927 AU 0.1465 3.47 yr (1,268 days) 356.63° 0.2839 ms / day 5.7254° 213.53° 232.65° 14.059 0.096 km14.139 km14.997 0.382 km15.09 0.22 km 8.0 0.1 h 8.1202 0.0001 h (22.0°, 76.0°) (λ1/β1) 0.23240.2388 0.04620.250 0.0090.260 0.023 S (family-based) 11.2011.311.45 0.1411.4511.55 1.00 1419 Danzig (prov. designation: 1929 RF) is a highly elongated Flora asteroid from the inner regions of the asteroid belt. It was discovered on 5 September 1929, by German astronomer Karl Reinmuth at Heidelberg Observatory in southwest Germany. The stony S-type asteroid has a rotation period of 8.1 hours and measures approximately 14 km mi off 2 us in diameter. It was named for the city of Gdańsk (de Danzig). Classification and orbit When applying the synthetic hierarchical clustering method (HCM) by Nesvorný, Danzig is a member of the Flora family (402), a giant asteroid family and the largest family of stony asteroids in the main-belt.23 However, according to the 1995 HCM-analysis by Zappalà, and HCM-analysis by Milani and Knežević (AstDys), it is a background asteroid. The latter HCM-analysis does not recognize the Flora asteroid clan. Danzig orbits the Sun at a distance of 2.0–2.6 AU once every 3 years and 6 months (1,268 days). Its orbit has an eccentricity of 0.15 and an inclination of 6° with respect to the ecliptic. In 1917, it was first observed as A917 GA at Simeiz Observatory (and Heidelberg on the following night), extending the body's observation arc by 12 years prior to its official discovery observation at Heidelberg. Naming This minor planet was named after the now Polish city and port on the Baltic sea, Gdańsk (de Danzig). The city was also honored by another minor planet, 764 764 Gedania. Naming citation was first mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 128) Physical characteristics The overall spectral type for Florian asteroid is that of a stony S-type.23 Rotation period and pole thumb|left|265px|Lightcurve-based 3D-model of Danzig In November 1988, Polish astronomer Wiesław Wiśniewski obtained a rotational lightcurve of Danzig from photometric observations. It gave a well-defined rotation period of 8.0 0.1 hours with a brightness variation of 0.92 magnitude (U=3). In October 2002, another lightcurve obtained by Italian and French amateur astronomers Silvano Casulli and Laurent Bernasconi gave a concurring period of 8.1202 0.0001 hours and an amplitude of 0.81 magnitude (U=3). While Danzig has an average rotation period, it has a high brightness variation, which indicates that the body has a non-spheroidal shape. In 2011, a modeled lightcurve using data from the Uppsala Asteroid Photometric Catalogue (UAPC) and other sources gave a period 8.11957 0.00005 hours, as well as a spin axis of (22.0°, 76.0°) in ecliptic coordinates (λ, β) (U=n.a.). 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, Danzig measures 14.059 and 15.09 kilometers in diameter and its surface has an albedo between 0.238 and 0.260. The Collaborative Asteroid Lightcurve Link adopts Petr Pravec's revised WISE-data, that is, an albedo of 0.2324 and a diameter of 14.139 kilometers with an absolute magnitude of 11.45. References 2017-03-08 last obs. JPL Small-Body Database Browser: 1419 Danzig (1929 RF) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001419 Jet Propulsion Laboratory 5 April 2017 Dictionary of Minor Planet Names Schmadel Lutz D. Springer Berlin Heidelberg (1419) Danzig 114 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1420 1419 Danzig (1929 RF) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1419 5 April 2017 Asteroids and comets rotation curves – (1419) Danzig Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page4cou.html#001419 5 April 2017 3 August 2003 https://web.archive.org/web/20030803183423/http://obswww.unige.ch/~behrend/page4cou.html#001419 dead 1419 5 April 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 (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 Petr Pravec Alan W. Harris Peter Kusnirák Adrián Galád Kamil Hornoch September 2012 Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations Icarus 221 1 365–387 2012Icar..221..365P 10.1016/j.icarus.2012.07.026 11104/0217021 free 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 W. Z. Wisniewski T. M. Michalowski A. W. Harris R. S. McMillan March 1995 Photoelectric Observations of 125 Asteroids Abstracts of the Lunar and Planetary Science Conference 26 1511 1995LPI....26.1511W 6 Hanus, J. Durech, J. Broz, M. Warner, B. D. Pilcher, F. Stephens, R. Oey, J. Bernasconi, L. Casulli, S. Behrend, R. Polishook, D. Henych, T. Lehký, M. Yoshida, F. Ito, T. June 2011 A study of asteroid pole-latitude distribution based on an extended set of shape models derived by the lightcurve inversion method Astronomy & Astrophysics 530 16 2011A&A...530A.134H 10.1051/0004-6361/201116738 1104.4114 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 Asteroid 1419 Danzig – Nesvorny HCM Asteroid Families V3.0 Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1419+Danzig#Asteroid%201419%20DanzigEAR-A-VARGBDET-5-NESVORNYFAM-V3.0 16 March 2020 October 2026 InternetArchiveBot Zappalà V. Bendjoya Ph. Cellino A. Farinella P. Froeschle C. 1997 Asteroid Dynamical Families https://sbnarchive.psi.edu/pds3/non_mission/EAR_A_5_DDR_FAMILY_V4_1/data/family.tab NASA Planetary Data System EAR-A-5-DDR-FAMILY-V4.1 16 March 2020 (PDS main page) Asteroid 1419 Danzig – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1419 16 March 2020 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 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 1419 1418 Fayeta 1419 1420 Radcliffe 001419 Category:Discoveries by Karl Wilhelm Reinmuth Category:Named minor planets 19290905