1553 Bauersfelda

Main-belt asteroid October 2019 yes 1553 Bauersfelda #D6D6D6 K. Reinmuth Heidelberg Obs. 13 January 1940 (1553) Bauersfelda 1940 AD Walther Bauersfeld(German engineer) main-beltKoronisbackground 4 September 2017 (JD 2458000.5) 0 77.47 yr (28,296 days) 3.1994 AU 2.6132 AU 2.9063 AU 0.1009 4.95 yr (1,810 days) 236.42° 0.1989 ms / day 3.2348° 110.97° 20.747° 11.48 km (calculated)13.772 0.194 km14.346 0.123 km 51.191 0.1354 h 0.2181 0.02730.24 (assumed)0.249 0.041 SMASS SS 11.417 0.002 (R)11.511.611.72 0.2611.87 1553 Bauersfelda (provisional designation 1940 AD) is a stony Koronian asteroid from the outer regions of the asteroid belt, approximately 13 kilometers in diameter. It was discovered on 13 January 1940, by astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The asteroid was named after German engineer Walther Bauersfeld. Orbit and classification Bauersfelda orbits the Sun in the outer main-belt at a distance of 2.6–3.2 AU once every 4 years and 11 months (1,810 days). Its orbit has an eccentricity of 0.10 and an inclination of 3° with respect to the ecliptic. The body's observation arc begins with its official discovery observation at Heidelberg in 1940. Based on its orbital parameters, Bauersfelda is a member of the Koronis family (605), a very large outer asteroid family with nearly co-planar ecliptical orbits. However, Bauersfelda turns out to be a non-family asteroid from the main belt's background population when applying the hierarchical clustering method to its proper orbital elements. Physical characteristics In the SMASS classification, Bauersfelda is a stony S-type asteroid. It is also characterized as a S-type by PanSTARRS photometric survey, which agrees with the Koronis family's overall spectral type. Rotation period While not being a slow rotator, Bauersfelda's period is significantly longer than that of most minor planets. In August 2012, a rotational lightcurve of this asteroid was obtained from photometric observations in the R-band by astronomers at the Palomar Transient Factory in California. Lightcurve analysis gave a rotation period of 51.191 hours with a brightness variation of 0.26 magnitude (U=2). Diameter and albedo According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Bauersfelda measures 13.772 and 14.346 kilometers in diameter and its surface has an albedo of 0.2181 and 0.249, respectively. The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 and calculates a diameter of 11.48 kilometers based on an absolute magnitude of 11.87. Naming This minor planet was named after Walther Bauersfeld (1879–1959), a German engineer who worked at the optical manufacturer Zeiss (also see 851 Zeissia, which was named after the company's founder). Bauersfeld is known as the designer of the Zeiss made planetaria such as the Planetarium Jena. The asteroid's name was announced in the mid-1950s on the occasion of his 75th anniversary. The official 1553 naming citation was published by the Minor Planet Center in November 1953 (M.P.C. 994). References 30em 2017-07-03 last obs. JPL Small-Body Database Browser: 1553 Bauersfelda (1940 AD) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001553 Jet Propulsion Laboratory 21 September 2017 Dictionary of Minor Planet Names – (1553) Bauersfelda Schmadel Lutz D. Springer Berlin Heidelberg 123 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1554 (1553) Bauersfelda 1553 Bauersfelda (1940 AD) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1553 21 September 2017 Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008) 2009 https://archive.org/details/dictionaryminorp2008schm limited Appendix – Publication Dates of the MPCs Schmadel Lutz D. Springer Berlin Heidelberg 221 978-3-642-01964-7 10.1007/978-3-642-01965-4 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 21 September 2017 Asteroid 1553 Bauersfelda – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1553 29 October 2019 1553 21 September 2017 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 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 21 September 2017 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 21 September 2017 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/20160729213840/http://obswww.unige.ch/~behrend/page_cou.html 29 July 2016 – Observatoire de Genève, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 1553 1552 Bessel 1553 1554 Yugoslavia 001553 Category:Discoveries by Karl Wilhelm Reinmuth Category:Named minor planets 001553 19400113