1611 Beyer

Asteroid October 2019 yes 1611 Beyer #D6D6D6 17 February 1950 K. Reinmuth Heidelberg Obs. (1611) Beyer 1950 DJ1958 RE Max Beyer (astronomer) main-belt(outer)Hygiea 4 September 2017 (JD 2458000.5) 0 67.10 yr (24,510 days) 3.6837 AU 2.6637 AU 3.1737 AU 0.1607 5.65 yr (2,065 days) 150.69° 0.1743 ms / day 4.2818° 237.54° 75.717° 15.46 4.34 km23.25 1.77 km24.30 km (calculated)24.444 0.192 km 13.2608 0.0113 h13.29 h 0.057 (assumed)0.062 0.0140.10 0.080.101 0.017 C (assumed) 11.3011.538 0.001 (R)11.7011.811.93 0.2112.08 1611 Beyer, provisional designation 1950 DJ, is a carbonaceous Hygiean asteroid from the outer region of the asteroid belt, approximately 20 kilometers in diameter. It was discovered on 17 February 1950, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany. It was named after astronomer Max Beyer. Classification and orbit Beyer is a member of the Hygiea family (601), a very large family of carbonaceous outer-belt asteroids, named after the fourth-largest asteroid, 10 Hygiea. It orbits the Sun in the outer main-belt at a distance of 2.7–3.7 AU once every 5 years and 8 months (2,065 days). Its orbit has an eccentricity of 0.16 and an inclination of 4° with respect to the ecliptic. Its observation arc begins with its official discovery observation, as no precoveries were taken, and no prior identifications were made. Physical characteristics Beyer is a carbonaceous C-type asteroid. Rotation period Astronomers Pierre Antonini and Silvano Casulli obtained a rotational light-curve of Beyer from photometric observations taken in July 2009. It gave a rotation period of 13.29 hours with a brightness variation of 0.35 magnitude (U=2+). In October 2010, observations in the R-band at the Palomar Transient Factory gave a similar period of 13.2608 hours and an amplitude of 0.12 magnitude (U=2). 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, Beyer measures between 15.46 and 24.44 kilometers in diameter, and its surface has an albedo between 0.062 and 0.101. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a diameter of 24.30 kilometers with an absolute magnitude of 11.8. Naming This minor planet was named by the discoverer for Max Beyer (1894–1982), German astronomer at the Bergedorf Observatory in Hamburg. Beyer was also on the post-war editorial board of the Astronomische Gesellschaft. The official 1611 naming citation was published by the Minor Planet Center in December 1959 (M.P.C. 1948). References 2017-03-27 last obs. JPL Small-Body Database Browser: 1611 Beyer (1950 DJ) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001611 Jet Propulsion Laboratory 5 June 2017 Schmadel Lutz D. Dictionary of Minor Planet Names Springer Berlin Heidelberg 128 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1612 (1611) Beyer 1611 Beyer (1950 DJ) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1611 28 December 2016 Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008) Appendix – Publication Dates of the MPCs Schmadel Lutz D. 2009 Springer Berlin Heidelberg 221 978-3-642-01964-7 10.1007/978-3-642-01965-4 Asteroids and comets rotation curves – (1611) Beyer Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page4cou.html#001611 28 December 2016 1 April 2019 https://web.archive.org/web/20190401181659/http://obswww.unige.ch/~behrend/page4cou.html#001611 dead Asteroid 1611 Beyer – Nesvorny HCM Asteroid Families V3.0 Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1611+Beyer#Asteroid%201611%20BeyerEAR-A-VARGBDET-5-NESVORNYFAM-V3.0 26 October 2019 October 2026 InternetArchiveBot 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 1611 28 December 2016 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 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 28 December 2016 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 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 http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015AJ....150...75W The Astronomical Journal 150 3 35 2015AJ....150...75W 10.1088/0004-6256/150/3/75 1504.04041 28 December 2016 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 28 December 2016 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/20241208174218/http://obswww.unige.ch/~behrend/page_cou.html 8 December 2024 – Observatoire de Genève, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 1611 1610 Mirnaya 1611 1612 Hirose 001611 Category:Discoveries by Karl Wilhelm Reinmuth Category:Named minor planets 19500217