1422 Strömgrenia

Stony Florian asteroid October 2019 yes 1422 Strömgrenia #D6D6D6 001422-asteroid shape model (1422) Strömgrenia.png Shape model of Strömgrenia from its lightcurve 23 August 1936 K. Reinmuth Heidelberg Obs. (1422) Stromgrenia 1936 QF1933 WB Elis Strömgren (astronomer) main-beltFlora 16 February 2017 (JD 2457800.5) 0 79.76 yr (29,134 days) 2.6241 AU 1.8697 AU 2.2469 AU 0.1679 3.37 yr (1,230 days) 291.18° 0.2926 ms / day 2.6809° 201.61° 171.15° 4.64 0.66 km4.87 0.34 km5.62 km (calculated)5.814 0.113 km6.025 0.027 km 3.5002 0.0102 h (S)3.5298 0.0285 h (R) 0.2093 0.03640.224 0.0220.24 (assumed)0.320 0.0450.40 0.12 B–V = 0.868U–B = 0.519Tholen = SS 13.051 0.003 (R)13.06 0.2813.42 1422 Strömgrenia, provisional designation 1936 QF, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 5.5 kilometers in diameter. It was discovered on 23 August 1936, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany, and named after Swedish-Danish astronomer Svante Elis Strömgren. Classification and orbit Strömgrenia is a member of the Flora family, a large group of stony asteroids in the inner main-belt. It orbits the Sun at a distance of 1.9–2.6 AU once every 3 years and 4 months (1,230 days). Its orbit has an eccentricity of 0.17 and an inclination of 3° with respect to the ecliptic. It was first identified as 1933 WB at Uccle Observatory in 1933. The body's observation arc however begins with its official discovery observation at Heidelberg in 1936. Lightcurves Two rotational light-curves of Strömgrenia were obtained from photometric observations in the R and S band at the Palomar Transient Factory in April 2009. Light-curve analysis gave a rotation period of 3.5002 and 3.5298 hours with a brightness variation of 0.24 and 0.29 magnitude, respectively (U=2/2). Diameter, albedo and spectral type On the Tholen taxonomy, Strömgrenias spectral class is that of a S-type. According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, it measures between 4.64 and 6.03 kilometers in diameter, and its surface has an albedo between 0.209 and 0.40. The Collaborative Asteroid Lightcurve Link, assumes an albedo of 0.24 – derived from the asteroid 8 Flora, the family's principal body and namesake – and calculates a diameter of 5.62 kilometers with an absolute magnitude of 13.42. Naming This minor planet was named in honor of Swedish-Danish astronomer Svante Elis Strömgren (1870–1947), professor of astronomy and director of the Copenhagen University Observatory. Naming citation was first mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 128). References 2016-05-30 last obs. JPL Small-Body Database Browser: 1422 Stromgrenia (1936 QF) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001422 https://web.archive.org/web/20200918022041/https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001422 18 September 2020 Jet Propulsion Laboratory 8 January 2017 Dictionary of Minor Planet Names – (1422) Strömgrenia Schmadel Lutz D. Springer Berlin Heidelberg 114 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1423 (1422) Strömgrenia 1422 Stromgrenia (1936 QF) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1422 8 January 2017 6 Joseph R. Masiero A. K. Mainzer T. Grav J. M. Bauer R. M. Cutri J. Dailey P. R. M. Eisenhardt R. S. McMillan T. B. Spahr M. F. Skrutskie D. Tholen R. G. Walker E. L. Wright E. DeBaun D. Elsbury T. IV Gautier S. Gomillion A. Wilkins November 2011 Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M The Astrophysical Journal 741 2 20 2011ApJ...741...68M 10.1088/0004-637X/741/2/68 1109.4096 8 January 2017 1422 8 January 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 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 8 January 2017 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 https://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 8 January 2017 1509.02522 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 8 January 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 8 January 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 – Observatoire de Genève, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 1422 1421 Esperanto 1422 1423 Jose 001422 Category:Discoveries by Karl Wilhelm Reinmuth Category:Named minor planets 001422 19360823