1628 Strobel

Main-belt asteroid October 2019 yes 1628 Strobel #D6D6D6 11 September 1923 K. Reinmuth Heidelberg Obs. (1628) Strobel 1923 OG1926 GY1947 GC1949 QA 21952 DV 21957 CA1960 WH Willi Strobel (astronomer) main-belt(outer) 4 September 2017 (JD 2458000.5) 0 93.11 yr (34,007 days) 3.2152 AU 2.8088 AU 3.0120 AU 0.0675 5.23 yr (1,909 days) 244.38° 0.1885 ms / day 19.387° 181.19° 289.14° 51.15 14.91 km53.147 0.793 km54.26 16.39 km56.58 0.68 km57.06 km (derived)57.12 1.7 km (IRAS:12)59.345 0.484 km 9.52 0.01 h11.80 h 0.047 0.0100.05 0.030.0504 (derived)0.0532 0.003 (IRAS:12)0.055 0.0020.0581 0.01130.06 0.04 PXCB–V = 0.840U–B = 0.320 10.0210.0810.31 0.2010.32 1628 Strobel (provisional designation 1923 OG) is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 55 kilometers in diameter. It was discovered on 11 September 1923, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany, and named after ARI-astronomer Willi Strobel. Classification and orbit Strobel orbits the Sun in the outer main-belt at a distance of 2.8–3.2 AU once every 5 years and 3 months (1,909 days). Its orbit has an eccentricity of 0.07 and an inclination of 19° with respect to the ecliptic. Strobel's observation arc begins two nights after its official discovery observation at Heidelberg in 1923. Physical characteristics Strobel is a carbonaceous C-type asteroid. It is also classified as a P-type by WISE and as an X-type asteroid by Pan-STARRS. Rotation period American astronomer Richard Binzel obtained the first rotational lightcurve of Strobel in May 1984. It gave a rotation period of 11.80 hours with a brightness amplitude of 0.22 magnitude (U=2). In May 2005, photometric observations by French amateur astronomer Laurent Bernasconi gave a shorter period of 9.52 hours and a brightness change of 0.20 magnitude (U=2). Diameter and albedo According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Strobel measures between 51.15 and 59.35 kilometers in diameter, and its surface has an albedo between 0.047 and 0.06. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0504 and a diameter of 57.06 kilometers with an absolute magnitude of 10.08. Naming This minor planet was named in honor of Willi Strobel (1909–1988), staff member at Astronomisches Rechen-Institut (ARI) since 1938, and author of the 1963-edition of Identifizierungsnachweis der Kleinen Planeten (Minor planet identifications, published by ARI). The official 1628 naming citation was published by the Minor Planet Center on 20 February 1976 (M.P.C. 3931). References 2016-10-19 last obs. JPL Small-Body Database Browser: 1628 Strobel (1923 OG) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001628 Jet Propulsion Laboratory 30 June 2017 Dictionary of Minor Planet Names – (1628) Strobel Schmadel Lutz D. Springer Berlin Heidelberg 129 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1629 (1628) Strobel 1628 Strobel (1923 OG) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1628 27 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 2009dmpn.book.....S Asteroids and comets rotation curves – (1628) Strobel Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page4cou.html#001628 27 December 2016 1 April 2019 https://web.archive.org/web/20190401181659/http://obswww.unige.ch/~behrend/page4cou.html#001628 dead 6 Joseph R. Masiero T. Grav A. K. Mainzer C. R. Nugent J. M. Bauer R. Stevenson S. Sonnett August 2014 Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014ApJ...791..121M The Astrophysical Journal 791 2 11 2014ApJ...791..121M 10.1088/0004-637X/791/2/121 1406.6645 27 December 2016 1628 27 December 2016 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 – IRAS-A-FPA-3-RDR-IMPS-V6.0 2004PDSS...12.....T 17 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 (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 35447010 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 http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015ApJ...814..117N The Astrophysical Journal 814 2 13 2015ApJ...814..117N 10.1088/0004-637X/814/2/117 1509.02522 9341381 27 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 Binzel, R. P. October 1987 A photoelectric survey of 130 asteroids http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=1987Icar...72..135B Icarus 72 1 135–208 0019-1035 1987Icar...72..135B 10.1016/0019-1035(87)90125-4 27 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 53493339 27 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 1628 1627 Ivar 1628 1629 Pecker 001628 Category:Discoveries by Karl Wilhelm Reinmuth Category:Named minor planets 19230911