1024 Hale

Asteroid March 2018 yes 1024 Hale #D6D6D6 G. van Biesbroeck Yerkes Obs. 2 December 1923 (1024) Hale YO 13, A923 XC George Ellery Hale(American astronomer) main-belt(outer)background 23 March 2018 (JD 2458200.5) 0 89.22 yr (32,587 d) 3.5095 AU 2.2230 AU 2.8663 AU 0.2244 4.85 yr (1,772 d) 173.74° 0.2031 ms / day 16.090° 58.856° 307.94° 28.46 6.70 km41.28 km (derived)43.274 0.148 km45.964 17.12 km47.33 8.98 km47.674 0.893 km48.18 0.78 km51.37 15.55 km 16.0 0.1 h 0.0260 0.02400.027 0.0470.0289 0.00570.03 0.020.044 0.0020.045 0.0070.0496 (derived)0.10 0.04 SMASS ChCC (SDSS-MFB) 10.6010.7010.7810.810.8311.00 1024 Hale, provisional designation YO 13, is a carbonaceous background asteroid from the outer regions of the asteroid belt, approximately 45 km mi off us in diameter. The asteroid was discovered on 2 December 1923, by Belgian–American astronomer George Van Biesbroeck at the Yerkes Observatory in Wisconsin, United States. It was named for American astronomer George Ellery Hale. The dark C-type asteroid may have a rotation period of 16 hours. Orbit and classification Hale is a non-family asteroid from the main belt's background population. It orbits the Sun in the outer asteroid belt at a distance of 2.2–3.5 AU once every 4 years and 10 months (1,772 days; semi-major axis of 2.87 AU). Its orbit has an eccentricity of 0.22 and an inclination of 16° with respect to the ecliptic. The body's observation arc begins at Yerkes Observatory with its first recorded observation in December 1928, or five years after its official discovery observation. Physical characteristics Hale has been characterized as a carbonaceous C-type asteroid by Pan-STARRS photometric survey and by the SDSS-MFB (Masi Foglia Binzel). In the SMASS classification it is a "hydrated" Ch-subtype. Rotation period In January 2013, a first rotational lightcurve of Hale was obtained from photometric observations by Michael S. Alkema at the Elephant Head Observatory G35 in Arizona, United States. Analysis of the fragmentary lightcurve gave a rotation period of 16.0 hours with a brightness amplitude of 0.10 magnitude (U=1+). As of 2018, no secure period has been obtained. Diameter and albedo According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Hale measures between 28.46 and 51.37 kilometers in diameter and its surface has an albedo between 0.0260 and 0.10. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0496 and a diameter of 41.28 kilometers based on an absolute magnitude of 10.8. Naming This minor planet was named after George Ellery Hale (1868–1938), a prolific American astronomer and pioneer of a new generation of large aperture telescopes, namely the 60-inch Hale and the 100-inch Hooker telescope at Mount Wilson Observatory, as well as the 200-inch Hale telescope at Palomar Observatory. He founded the discovering Yerkes and Mount Wilson observatories and was their first director. Hale also founded The Astrophysical Journal and invented the spectroheliograph, which allowed to take monochromatic images of the Sun. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 98). References 30em 2018-02-26 last obs. JPL Small-Body Database Browser: 1024 Hale (A923 YO13) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001024 https://web.archive.org/web/20200806102634/https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001024 dead 6 August 2020 Jet Propulsion Laboratory 16 March 2018 Dictionary of Minor Planet Names – (1024) Hale Schmadel Lutz D. Springer Berlin Heidelberg 88 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1025 (1024) Hale 1024 Hale (A923 XC) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1024 1 July 2026 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 The Astrophysical Journal 791 2 11 2014ApJ...791..121M 10.1088/0004-637X/791/2/121 1406.6645 119293330 Asteroid 1024 Hale – Nesvorny HCM Asteroid Families V3.0 Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1024+Hale 24 October 2019 June 2026 InternetArchiveBot 1024 16 March 2018 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 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 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 46350317 16 March 2018 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 16 March 2018 6 Joseph R. Masiero C. Nugent A. K. Mainzer E. L. Wright J. M. Bauer R. M. Cutri T. Grav E. Kramer S. Sonnett October 2017 NEOWISE Reactivation Mission Year Three: Asteroid Diameters and Albedos The Astronomical Journal 154 4 10 2017AJ....154..168M 10.3847/1538-3881/aa89ec 1708.09504 free 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) Alkema, Michael S. July 2013 Asteroid Lightcurve Analysis at Elephant Head Observatory: 2012 November - 2013 April http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2013MPBu...40..133A The Minor Planet Bulletin 40 3 133–137 1052-8091 2013MPBu...40..133A 16 March 2018 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 16 March 2018 External links SDSS Masi–Foglia–Binzel Spectroscopic classification (MFB catalog) 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 1024 1023 Thomana 1024 1025 Riema 001024 Category:Discoveries by George Van Biesbroeck Category:Named minor planets 001024 19231202