10247 Amphiaraos

Trojan asteroid May 2018 yes 10247 Amphiaraos #C2FFFF C. J. van HoutenI. van Houten-G.T. Gehrels Palomar Obs. 24 September 1960 (10247) Amphiaraos 6629 P-L1994 PT 9 ˌ æ m f i ə ' r eɪ ə s ,_ - Q s'Amphiaraus' in Noah Webster (1884) A Practical Dictionary of the English Language Amphiaraus(Greek mythology) Jupiter trojanGreekbackground 23 March 2018 (JD 2458200.5) 0 57.01 yr (20,822 d) 5.3043 AU 5.2213 AU 5.2628 AU 0.0079 12.07 yr (4,410 d) 182.20° 0.0816 ms / day 4.1913° 162.52° 343.92° 0.2185 AU 2.9950 26.83 0.69 km33.54 km (calculated) 34.26 0.01 h 0.057 (assumed)0.098 0.015 X/D (Pan-STARRS)X/D (SDSS-MOC)C (assumed) 11.011.111.54 0.33 10247 Amphiaraos ˌ æ m f i ə ' r eɪ ə s is a Jupiter trojan from the Greek camp, approximately 27 km mi off 2 us in diameter. It was discovered on 24 September 1960, by Dutch astronomers Ingrid and Cornelis van Houten at Leiden, and Tom Gehrels at the Palomar Observatory in California. The X/D-type asteroid has a long rotation period of 34.26 hours and possibly an elongated shape. It was named after the seer Amphiaraus (Amphiaraos) from Greek mythology. Orbit and classification Amphiaraos is a Jovian asteroid orbiting in the leading Greek camp at Jupiter's Lagrangian point, 60° ahead of the Gas Giant's orbit in a 1:1 resonance (see Trojans in astronomy). It is a non-family asteroid in the Jovian background population. It orbits the Sun at a distance of 5.2–5.3 AU once every 12 years and 1 month (4,410 days; semi-major axis of 5.26 AU). Its orbit has an eccentricity of 0.01 and an inclination of 4° with respect to the ecliptic. The body's observation arc begins with its official discovery observation at Palomar in September 1960. Palomar–Leiden survey The survey designation "P-L" stands for Palomar–Leiden, named after Palomar Observatory and Leiden Observatory, which collaborated on the fruitful Palomar–Leiden survey in the 1960s. Gehrels used Palomar's Samuel Oschin telescope (also known as the 48-inch Schmidt Telescope), and shipped the photographic plates to Ingrid and Cornelis van Houten at Leiden Observatory where astrometry was carried out. The trio are credited with the discovery of several thousand asteroid discoveries. Physical characteristics Amphiaraos has been characterized as an X and D-type asteroid in the SDSS-based taxonomy, and by Pan-STARRS' survey. It is also an assumed C-type. Rotation period In March 2012, a rotational lightcurve of Amphiaraos was obtained from photometric observations by Robert Stephens, Daniel Coley and Ralph Megna at the Goat Mountain Astronomical Research Station G79 in California. Lightcurve analysis gave a longer-than average rotation period of 34.26 hours with a brightness amplitude of 0.55 magnitude (U=2). Diameter and albedo According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Amphiaraos measures 26.83 kilometers in diameter and its surface has an albedo of 0.098, while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for a carbonaceous asteroid of 0.057 and calculates a diameter of 33.54 kilometers based on an absolute magnitude of 11.1. Naming This minor planet was named after the Greek seer Amphiaraus (Amphiaraos), who was the king of Argos. He was one of the Seven against Thebes. The official 10247 naming citation was published by the Minor Planet Center on 24 January 2000 (M.P.C. 38199). References 30em 2017-09-27 last obs. JPL Small-Body Database Browser: 10247 Amphiaraos (6629 P-L) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2010247 Jet Propulsion Laboratory 31 May 2018 10247 Amphiaraos (6629 P-L) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=10247 31 May 2018 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 31 May 2018 List of Jupiter Trojans Minor Planet Center 2 February 2018 https://www.minorplanetcenter.net/iau/lists/JupiterTrojans.html 31 May 2018 Minor Planet Discoverers Minor Planet Center https://www.minorplanetcenter.net/iau/lists/MPDiscsNum.html 2018 31 May 2018 T. Grav A. K. Mainzer J. M. Bauer J. R. Masiero C. R. Nugent November 2012 WISE/NEOWISE Observations of the Jovian Trojan Population: Taxonomy The Astrophysical Journal 759 1 10 2012ApJ...759...49G 10.1088/0004-637X/759/1/49 1209.1549 119101711 Asteroid 10247 Amphiaraos Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=10247+Amphiaraos 31 May 2018 19 August 2020 https://web.archive.org/web/20200819074216/https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=10247%20Amphiaraos dead J. M. Carvano P. H. Hasselmann D. Lazzaro T. Mothé-Diniz February 2010 SDSS-based taxonomic classification and orbital distribution of main belt asteroids https://sbnarchive.psi.edu/pds3/non_mission/EAR_A_I0035_5_SDSSTAX_V1_1/data/sdsstax_ast_table.tab Astronomy and Astrophysics 510 12 2010A&A...510A..43C 10.1051/0004-6361/200913322 30 October 2019 free (PDS data set) Asteroid (10247) Amphiaraos AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?n=10247&pc=1.1.6 31 May 2018 10247 31 May 2018 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 118700974 (catalog) Linda M. French Robert D. Stephens Daniel R. Coley Ralph Megna Lawrence H. Wasserman July 2012 Photometry of 17 Jovian Trojan Asteroids The Minor Planet Bulletin 39 3 183–187 1052-8091 2012MPBu...39..183F 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 Icarus 261 34–47 2015Icar..261...34V 10.1016/j.icarus.2015.08.007 1506.00762 53493339 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 Discovery Circumstances: Numbered Minor Planets (10001)-(15000) – Minor Planet Center 10247 10246 Frankenwald 10247 10248 Fichtelgebirge 010247 010247 Category:Discoveries by Cornelis Johannes van Houten Category:Discoveries by Ingrid van Houten-Groeneveld Category:Discoveries by Tom Gehrels 6629 Category:Named minor planets 19600924