18 Delphini b

Extrasolar planet in the constellation Delphinus 18 Delphini b / Arion Image:18 Del b rv.pdf Radial velocity changes over time of 18 Delphini caused by the orbit of 18 Delphini b. Sato et al. Okayama Planet Search ProgramJapan 19 February 2008 radial velocity no astron 2.476 AU km on 0.08 ± 0.01 993.3 ± 3.2 d2.719 y 2451672 ± 18 166.1 ± 6.5 18 Delphini 9.207 18 Delphini b (abbreviated 18 Del b), formally named Arion @ ' r ai @ n,Arion is an extrasolar planet approximately 245 light-years away in the constellation of Delphinus.Sato Bun'ei Planetary Companions around Three Intermediate-Mass G and K Giants: 18 Delphini, ξ Aquilae, and HD 81688 2008-02-19 Izumiura Hideyuki Toyota Eri Kambe Eiji Ikoma Masahiro Omiya Masashi Masuda Seiji Takeda Yoichi Murata Daisuke Publications of the Astronomical Society of Japan 60 3 539–550 10.1093/pasj/60.3.539 0802.2590 The 993-day period planet orbits the Red clump star 18 Delphini 2.476 AU away every 2.719 years. It is a very massive and dense planet with a mass of 9.207, it was discovered on February 19, 2008, by Bun'ei Sato.2019-04-22 18 Delphini b - NASA Science https://science.nasa.gov/exoplanet-catalog/18-delphini-b/ 2025-08-30 en-US In July 2014, the International Astronomical Union launched NameExoWorlds, a process for giving proper names to certain exoplanets and their host stars.NameExoWorlds: An IAU Worldwide Contest to Name Exoplanets and their Host Stars https://web.archive.org/web/20170904221813/https://www.iau.org/news/pressreleases/detail/iau1404/ 2017-09-04 . IAU.org. 9 July 2014 The process involved public nomination and voting for the new names.http://nameexoworlds.iau.org/process NameExoWorlds The Process 2015-09-05 2015-08-15 https://web.archive.org/web/20150815025117/http://www.nameexoworlds.iau.org/process dead In December 2015, the IAU announced the name Arion for this planet.Final Results of NameExoWorlds Public Vote Released https://web.archive.org/web/20151217145453/http://www.iau.org/news/pressreleases/detail/iau1514/ 2015-12-17 , International Astronomical Union, 15 December 2015. The winning name was submitted by the Tokushima Prefectural Jonan High School Science Club of Japan. Arion was a genius of poetry and music in ancient Greece. According to legend, his life was saved at sea by dolphins after attracting their attention by the playing of his kitharahttp://nameexoworlds.iau.org/names NameExoWorlds The Approved Names 2015-12-17 2018-02-01 https://web.archive.org/web/20180201043609/http://nameexoworlds.iau.org/names dead ('Delphinus' is Latin for 'dolphin'). See also 41 Lyncis b Xi Aquilae b References Planetary Companions around Three Intermediate-Mass G and K Giants: 18 Delphini, ξ Aquilae and HD 81688 https://academic.oup.com/pasj/article/60/3/539/1508408 Sato Bun'ei Izumiura Hideyuki Toyota Eri Kambe Eiji Ikoma Masahiro Omiya Masashi Masuda Seiji Takeda Yoichi Murata Daisuke Itoh Yoichi Ando Hiroyasu Yoshida Michitoshi Kokubo Eiichiro Ida Shigeru 1 Publications of the Astronomical Society of Japan 60 3 539–550 2008 0802.2590 2008PASJ...60..539S 10.1093/pasj/60.3.539 https://exoplanet.eu/catalog/18_del_b--454/ Notes for Planet 18 Del b Jean Schneider 2011 Extrasolar Planets Encyclopaedia 30 September 2011 External links 1 da Silva L. Girardi L. Pasquini L. Setiawan J. von der Lühe O. de Medeiros J. R. Hatzes A. Döllinger M. P. Weiss A. Basic physical parameters of a selected sample of evolved stars Astronomy and Astrophysics 458 2 609–623 10.1051/0004-6361:20065105 2006A&A...458..609D astro-ph/0608160 November 2006 9341088 – lists data about the star. 20 58 26 + 10 50 21 238 Category:Delphinus Category:Giant planets Category:Exoplanets discovered in 2008 Category:Exoplanets detected by radial velocity Category:Exoplanets with proper names Category:Exoplanets orbiting G-type stars Category:Exoplanets orbiting giant stars