1925 Franklin-Adams

Stony main-belt asteroid October 2019 yes 1925 Franklin-Adams #D6D6D6 001925-asteroid shape model (1925) Franklin-Adams.png Franklin-Adams modeled from its lightcurve 9 September 1934 H. van Gent Johannesburg Obs.(Leiden Southern Station) (1925) Franklin-Adams 1934 RY1969 EP 11970 KH1974 KK John Franklin Adams(British astronomer) main-belt(middle)background 31 May 2020 (JD 2459000.5) 0 85.14 yr (31,098 d) 2.9989 AU 2.1046 AU 2.5517 AU 0.1752 4.08 yr (1,489 d) 11.630° 0.2418 ms / day 7.7371° 113.47° 242.08° 8.864 0.114 km 2.978 0.002 hlightcurve-plot 0.356 0.054 S (assumed) 12.012.1 1925 Franklin-Adams (prov. designation: 1934 RY) is a stony background asteroid from the central regions of the asteroid belt, approximately 8.9 km mi off 2 us in diameter. It was discovered on 9 September 1934, by Dutch astronomer Hendrik van Gent at the Leiden Southern Station, annex to the Johannesburg Observatory in South Africa. The bright asteroid has a short rotation period of less than 3 hours. It was named after British amateur astronomer John Franklin Adams (1843–1912). Orbit and classification Franklin-Adams is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements. It orbits the Sun in the central asteroid belt at a distance of 2.1–3.0 AU once every 4 years and 1 month (1,489 days; semi-major axis of 2.55 AU). Its orbit has an eccentricity of 0.18 and an inclination of 8° with respect to the ecliptic. The body's observation arc begins with its official discovery observation at Johannesburg. Naming This minor planet named after British amateur astronomer John Franklin Adams (1843–1912), who created one of the earliest detailed, photographic atlases of the complete night sky (the "Franklin-Adams plates" or "charts"). He later donated his 25-cm Franklin-Adams Star Camera (Franklin-Adams photographic refractor) to the Johannesburg Observatory, which lead to the discovery of Proxima Centauri. The official 1925 naming citation was published by the Minor Planet Center on 20 December 1983 (M.P.C. 8402). Asteroid 982 Franklina, discovered by South African astronomer Harry Edwin Wood at Johannesburg was also 982 named after him. Physical characteristics Franklin-Adams is an assumed stony S-type asteroid with a very high albedo of more than 0.3. Rotation period and poles In January 2005, a rotational lightcurve of Franklin-Adams was obtained from photometric observations by French amateur astronomer René Roy. Lightcurve analysis gave a rotation period of 3.082 hours with a brightness amplitude of 0.23 magnitude (U=2). In March 2010, photometry at the Palomar Transient Factory in California gave a period of 2.979 with an amplitude of 0.32 magnitude (U=2). In January 2013, American astronomer Brian Warner obtained the so-far best rated lightcurve.lightcurve-plot It gave a period of 2.978 hours and an amplitude of 0.25 magnitude (U=3). In 2016, an international study modeled a lightcurve with a concurring period of 2.978301 hours and found a spin axis of (277.0°, 57.0°) and (66.0°, 48.0°) in ecliptic coordinates (λ, β) (U=n.a.). Diameter and albedo According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Franklin-Adams measures 8.864 kilometers in diameter and its surface has an unusually high albedo of 0.356, while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 11.30 kilometers based on an absolute magnitude of 12.1. Notes lightcurve-plot Lightcurve plot of 1925 Franklin-Adams with a period of 2.978 0.002 and an amplitude of 0.25 ± 0.02 mag. Observations at the Palmer Divide Observatory by B. D. Warner (2013) References 30em 2019-10-31 last obs. JPL Small-Body Database Browser: 1925 Franklin-Adams (1934 RY) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001925 Jet Propulsion Laboratory 8 February 2020 Dictionary of Minor Planet Names https://archive.org/details/dictionaryminorp00schm limited Schmadel Lutz D. Springer Berlin Heidelberg (1925) Franklin-Adams 155 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1926 The Internet Encyclopedia of Science David Darling http://www.daviddarling.info/encyclopedia/F/Franklin-Adams_charts.html https://web.archive.org/web/20170322015027/http://www.daviddarling.info/encyclopedia/F/Franklin-Adams_charts.html 22 March 2017 Asteroids and comets rotation curves – (1925) Franklin-Adams Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page4cou.html#001925 9 June 2017 3 August 2003 https://web.archive.org/web/20030803183423/http://obswww.unige.ch/~behrend/page4cou.html#001925 dead 1925 Franklin-Adams (1934 RY) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1925 8 February 2020 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 9 June 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 21 March 2017 LCDB Data for (1925) Franklin-Adams Asteroid Lightcurve Database (LCDB) http://www.minorplanet.info/PHP/lcdbsummaryquery.php 8 February 2020 Asteroid 1925 Franklin-Adams – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1925 8 February 2020 Asteroid 1925 Franklin-Adams Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1925+Franklin-Adams 8 February 2020 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 Warner, Brian D. July 2013 Asteroid Lightcurve Analysis at the Palmer Divide Observatory: 2013 January - March http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2013MPBu...40..137W The Minor Planet Bulletin 40 3 137–145 1052-8091 2013MPBu...40..137W 9 June 2017 6 J. Hanus J. Durech D. A. Oszkiewicz R. Behrend B. Carry M. Delbo O. Adam V. Afonina R. Anquetin P. Antonini L. Arnold M. Audejean P. Aurard M. Bachschmidt B. Baduel E. Barbotin P. Barroy P. Baudouin L. Berard N. Berger L. Bernasconi J.-G. Bosch S. Bouley I. Bozhinova J. Brinsfield L. Brunetto G. Canaud J. Caron F. Carrier G. Casalnuovo S. Casulli M. Cerda L. Chalamet S. Charbonnel B. Chinaglia A. Cikota F. Colas J.-F. Coliac A. Collet J. Coloma M. Conjat E. Conseil R. Costa R. Crippa M. Cristofanelli Y. Damerdji Debackè A. re A. Decock Q. Déhais T. Déléage S. Delmelle C. Demeautis M. Drózdz G. Dubos T. Dulcamara M. Dumont R. Durkee R. Dymock A. Escalante del Valle N. Esseiva R. Esseiva M. Esteban T. Fauchez M. Fauerbach M. Fauvaud S. Fauvaud E. Forné C. Fournel D. Fradet J. Garlitz O. Gerteis C. Gillier M. Gillon R. Giraud J.-P. Godard R. Goncalves Hiroko Hamanowa Hiromi Hamanowa K. Hay S. Hellmich S. Heterier D. Higgins R. Hirsch G. Hodosan M. Hren A. Hygate N. Innocent H. Jacquinot S. Jawahar E. Jehin L. Jerosimic A. Klotz W. Koff P. Korlevic E. Kosturkiewicz P. Krafft Y. Krugly F. Kugel O. Labrevoir J. Lecacheux M. Lehký A. Leroy B. Lesquerbault M. J. Lopez-Gonzales M. Lutz B. Mallecot J. Manfroid F. Manzini A. Marciniak A. Martin B. Modave R. Montaigut J. Montier E. Morelle B. Morton S. Mottola R. Naves J. Nomen J. Oey W. Ogloza M. Paiella H. Pallares A. Peyrot F. Pilcher J.-F. Pirenne P. Piron M. Polinska M. Polotto R. Poncy J. P. Previt F. Reignier D. Renauld D. Ricci F. Richard C. Rinner V. Risoldi D. Robilliard D. Romeuf G. Rousseau R. Roy J. Ruthroff P. A. Salom L. Salvador S. Sanchez T. Santana-Ros A. Scholz G. Séné B. Skiff K. Sobkowiak P. Sogorb F. Soldán A. Spiridakis E. Splanska S. Sposetti D. Starkey R. Stephens A. Stiepen R. Stoss J. Strajnic J.-P. Teng G. Tumolo A. Vagnozzi B. Vanoutryve J. M. Vugnon B. D. Warner M. Waucomont O. Wertz M. Winiarski M. Wolf February 2016 New and updated convex shape models of asteroids based on optical data from a large collaboration network Astronomy and Astrophysics 586 24 2016A&A...586A.108H 10.1051/0004-6361/201527441 1510.07422 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 9 June 2017 External links 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 1925 1924 Horus 1925 1926 Demiddelaer 001925 Category:Discoveries by Hendrik van Gent Category:Named minor planets 19340909