12714 Alkimos

Trojan asteroid June 2018 yes 12714 Alkimos #C2FFFF C. S. ShoemakerE. M. Shoemaker Palomar Obs. 15 April 1991 (12714) Alkimos 1991 GX 11990 EY 1 Alkimian ˈ æ l k ᵻ m ɒ s ,_ - ə s'Alcimus' in Noah Webster (1884) A Practical Dictionary of the English Language Alcimus(Greek mythology) Jupiter trojanGreekbackground 23 March 2018 (JD 2458200.5) 0 26.36 yr (9,629 d) 5.4180 AU 5.0443 AU 5.2312 AU 0.0357 11.96 yr (4,370 d) 197.17° 0.0824 ms / day 9.5083° 298.90° 164.29° 0.1981 AU 2.9710 47.82 1.16 km54.62 4.20 km61.04 5.4 km 28.48 0.01 h 0.036 0.0070.045 0.0070.070 0.014 C (assumed) 10.110.30 12714 Alkimos ˈ æ l k ᵻ m ɒ s is a large Jupiter trojan from the Greek camp, approximately 54 km mi off 2 us in diameter. It was discovered on 15 April 1991, by American astronomer couple Carolyn and Eugene Shoemaker at the Palomar Observatory in California. The dark Jovian asteroid has a rotation period of 28.5 hours. It was named from Greek mythology after Alcimus, son of Ares and companion of Achilles. Orbit and classification Alkimos is a dark Jovian asteroid in a 1:1 orbital resonance with Jupiter. It is located in the leading Greek camp at the Gas Giant's Lagrangian point, 60° ahead of its orbit (see Trojans in astronomy). It is also a non-family asteroid in the Jovian background population. It orbits the Sun at a distance of 5.0–5.4 AU once every 12 years (4,370 days; semi-major axis of 5.23 AU). Its orbit has an eccentricity of 0.04 and an inclination of 10° with respect to the ecliptic. The body's observation arc begins with its first observation at the La Silla Observatory in February 1990, or 14 months prior to its official discovery observation at Palomar. Physical characteristics Alkimos is an assumed C-type asteroid, while larger Jupiter trojans are D-types. Rotation period In January 2012, a rotational lightcurve of Alkimos was obtained from photometric observations by Robert Stephens at GMARS G79 in California. Lightcurve analysis gave a rotation period of 28.48 0.01 hours with a brightness amplitude of 0.27 magnitude (U=3-). Diameter and albedo According to the surveys carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the Japanese Akari satellite and the Infrared Astronomical Satellite IRAS, Alkimos measures between 47.82 and 61.04 kilometers in diameter and its surface has an albedo between 0.036 and 0.070. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0431 and a diameter of 61.13 kilometers based on an absolute magnitude of 10.1. Naming This minor planet was named from Greek mythology after the hero Alcimus, son of Ares. After Patroclus had died, he and Automedon were the two most favored by Achilles. The official naming citation was published by the Minor Planet Center on 13 October 2000 (M.P.C. 41386). References 30em 2016-07-06 last obs. JPL Small-Body Database Browser: 12714 Alkimos (1991 GX1) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2012714 Jet Propulsion Laboratory 23 June 2018 12714 Alkimos (1991 GX1) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=12714 23 June 2018 List of Jupiter Trojans Minor Planet Center V. Carruba 1 June 2018 https://www.minorplanetcenter.net/iau/lists/JupiterTrojans.html 23 June 2018 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 23 June 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 http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759...49G The Astrophysical Journal 759 1 10 2012ApJ...759...49G 10.1088/0004-637X/759/1/49 1209.1549 119101711 23 June 2018 (online catalog) Asteroid (12714) Alkimos – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?n=12714&pc=1.1.6 23 June 2018 E. F. Tedesco P. V. Noah M. Noah S. D. Price October 2004 IRAS Minor Planet Survey V6.0 https://sbnarchive.psi.edu/pds3/iras/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab NASA Planetary Data System – IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS-A-FPA-3-RDR-IMPS-V6.0 2004PDSS...12.....T 23 June 2018 12714 23 June 2018 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 (online, AcuA catalog p. 153) Linda M. French Robert D. Stephens Daniel R. Coley Ralph Megna Lawrence H. Wasserman July 2012 Photometry of 17 Jovian Trojan Asteroids http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012MPBu...39..183F The Minor Planet Bulletin 39 3 183–187 1052-8091 2012MPBu...39..183F 23 June 2018 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 Asteroid 12714 Alkimos at the Small Bodies Data Ferret 12714 (12713) 1991 FY3 12714 12715 Godin 012714 Category:Discoveries by Carolyn S. Shoemaker Category:Discoveries by Eugene Merle Shoemaker Category:Named minor planets 19910415