1299 Mertona

Bright background asteroid October 2019 yes 1299 Mertona #D6D6D6 001299-asteroid shape model (1299) Mertona.png Modelled shape of Mertona, from its lightcurve 18 January 1934 G. Reiss Algiers Obs. (1299) Mertona 1934 BA Gerald Merton(English astronomer) main-belt(middle) background 4 September 2017 (JD 2458000.5) 0 82.85 yr (30,260 days) 3.3325 AU 2.2706 AU 2.8016 AU 0.1895 4.69 yr (1,713 days) 328.61° 0.2102 ms / day 7.8754° 165.61° 260.44° 14.140 0.322 km14.90 1.23 km 4.977 0.003 h (73.0°, 35.0°) (λ1/β1) 0.219 0.0380.243 0.033 unknown 11.277 0.002 (R)11.411.5 1299 Mertona (prov. designation: 1934 BA) is a bright background asteroid from the central region of the asteroid belt. It was discovered on 18 January 1934, by French astronomer Guy Reiss at Algiers Observatory, Algeria, in northern Africa. The likely stony asteroid with an unknown spectral type has a rotation period of 5.0 hours and measures approximately 14 km mi off 2 us in diameter. It was named after English astronomer Gerald Merton. Orbit and classification Mertona 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 main-belt at a distance of 2.3–3.3 AU once every 4 years and 8 months (1,713 days). Its orbit has an eccentricity of 0.19 and an inclination of 8° with respect to the ecliptic. As neither precoveries nor prior identifications were obtained, Mertonas observation arc begins with its official discovery observation at Algiers. Naming This minor planet was named after English astronomer Gerald Merton (1893–1983), who was president of the British Astronomical Association between 1950 and 1952. The 1299 naming was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 119). Physical characteristics Rotation period Several rotational lightcurves of Mertona were obtained during 2003–2016. Photometric observations were taken by astronomers Andy Monson and Steven Kipp (4.977 0.003 hours; Δ0.55 mag; U=3) in November 2003, by French amateur astronomer René Roy (4.981 0.002 hours; Δ0.46 mag; U3) in March 2005, by astronomers at the Palomar Transient Factory (4.9787 0.0013 hours, Δ0.48 mag, U=2) in August 2012, and by Daniel Klinglesmith (4.978 0.002 hours, Δ0.59 mag, U3) at Etscorn Observatory 719 in Socorro, New Mexico. In addition, a 2016-published lightcurve, modelling data from the Lowell photometric database, gave a concurring period of 4.97691 0.00001 hours and a spin axis of (73.0°, 35.0°) in ecliptic coordinates (Un.a.). Diameter and albedo According to the surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Mertona measures between 14.14 and 14.90 kilometers in diameter, and its surface has an albedo between 0.219 and 0.243. Although such a high albedo is typical for stony asteroids, the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.057, which it uses as the generic albedo for all carbonaceous C-type asteroids. It therefore calculates a larger diameter of 27.90 kilometers (as the lower the albedo or reflectivity, the larger a body's diameter at an unchanged absolute magnitude or brightness). Carbonaceous asteroids are the predominant type in the outer main-belt, while stony asteroids are mostly found in the inner regions of the asteroid belt. References 30em British Astronomical Association List of Members, 1969 April 30 London British Astronomical Association 1969 116 2016-11-23 last obs. JPL Small-Body Database Browser: 1299 Mertona (1934 BA) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001299 Jet Propulsion Laboratory 7 July 2017 Dictionary of Minor Planet Names https://archive.org/details/dictionaryminorp00schm limited Schmadel Lutz D. Springer Berlin Heidelberg (1299) Mertona 107 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1300 1299 Mertona (1934 BA) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1299 18 January 2017 Asteroids and comets rotation curves – (1299) Mertona Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page4cou.html#001299 18 January 2017 3 August 2003 https://web.archive.org/web/20030803183423/http://obswww.unige.ch/~behrend/page4cou.html#001299 dead 6 A. K. Mainzer J. M. Bauer R. M. Cutri T. Grav E. A. Kramer J. R. Masiero C. R. Nugent S. M. Sonnett R. A. Stevenson E. L. Wright June 2016 NEOWISE Diameters and Albedos V1.0 https://sbnarchive.psi.edu/pds3/non_mission/EAR_A_COMPIL_5_NEOWISEDIAM_V1_0/data/neowise_mainbelt.tab NASA Planetary Data System 2016PDSS..247.....M 16 March 2020 1299 18 January 2017 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) 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 Monson Andy Kipp Steven December 2004 Corrigendum: Rotational periods of asteroids 1165 Imprinetta, 1299 Mertona 1645 Waterfield, 1833 Shmakova, 2313 Aruna, and (13856) 1999 XZ105 Minor Planet Bulletin http://www.minorplanet.info/MPB/issues/MPB_31-4.pdf 31 4 97 2004MPBu...31...97M 1052-8091 16 March 2020 18 February 2020 https://web.archive.org/web/20200218155631/http://www.minorplanet.info/MPB/issues/MPB_31-4.pdf dead Klinglesmith Daniel A. III Hanowell Jesse Risley Ethan Turk Janek Vargas Angelica Warren Curtis Alan July 2014 Lightcurves for Inversion Model Candidates Minor Planet Bulletin http://www.minorplanet.info/MPB/issues/MPB_41-3.pdf 41 3 139–143 2014MPBu...41..139K 1052-8091 16 March 2020 21 July 2020 https://web.archive.org/web/20200721124236/http://www.minorplanet.info/MPB/issues/MPB_41-3.pdf dead Ďurech J. Hanuš J. Oszkiewicz D. Vančo R. March 2016 Asteroid models from the Lowell photometric database Astronomy and Astrophysics 587 A48 2016A&A...587A..48D 0004-6361 10.1051/0004-6361/201527573 1601.02909 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 18 January 2017 Asteroid 1299 Mertona Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1299+Mertona 16 March 2020 https://web.archive.org/web/20201107071000/https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1299+Mertona 7 November 2020 dead Asteroid 1299 Mertona – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1299 16 March 2020 External links Lightcurve Database Query (LCDB), at www.minorplanet.info 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 – Geneva Observatory, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 1299 1298 Nocturna 1299 1300 Marcelle 001299 Category:Discoveries by Guy Reiss Category:Named minor planets 19340118