HD 104985 b

{{Short description|Exoplanet orbiting the yellow giant HD 104985}}

{{Infobox planet

| name = HD 104985 b / Meztli

| discoverer = Sato et al.

| discovery_site = Okayama Planet
Search Program
{{flag|Japan}}

| discovered = June 26, 2003

| discovery_method = radial velocity

| apsis = astron

| aphelion = {{convert|0.80|AU|km|abbr=on}}

| perihelion = {{convert|0.76|AU|km|abbr=on}}

| semimajor = {{convert|0.78|AU|km|abbr=on}}

| eccentricity = 0.03 ± 0.02

| period = 198.2 ± 0.3 d
0.5426 ± 0.0008 y

| avg_speed = 43

| time_periastron = 2451990 ± 20

| arg_peri = 310 ± 30

| semi-amplitude = 161 ± 2

| star = HD 104985

}}

HD 104985 b, also named Meztli {{IPAc-en|'|m|E|s|t|l|i}}, is an extrasolar planet approximately 97 parsecs (317 lys) from the Sun. The 198-day period planet orbits the yellow giant star HD 104985 (Tonatiuh) at a distance of 0.78 AU. With a mass 6¹/₃ times Jupiter it is a gas giant.

Following its discovery in 2003 the planet was designated HD 104985 b. In July 2014 the International Astronomical Union launched NameExoWorlds, a process for giving proper names to certain exoplanets and their host stars.[http://www.iau.org/news/pressreleases/detail/iau1404/ NameExoWorlds: An IAU Worldwide Contest to Name Exoplanets and their Host Stars]. IAU.org. 9 July 2014 The process involved public nomination and voting for the new names.{{Cite web |url=http://nameexoworlds.iau.org/process |title=NameExoWorlds The Process |access-date=2015-09-05 |archive-date=2015-08-15 |archive-url=https://web.archive.org/web/20150815025117/http://nameexoworlds.iau.org/process |url-status=dead }} In December 2015, the IAU announced the winning name was Meztli for this planet.[http://www.iau.org/news/pressreleases/detail/iau1514/ Final Results of NameExoWorlds Public Vote Released], International Astronomical Union, 15 December 2015. The winning name was submitted by the Sociedad Astronomica Urania of Morelos, Mexico. 'Meztli' was the Aztec goddess of the Moon.{{Cite web |url=http://nameexoworlds.iau.org/names |title=NameExoWorlds The Approved Names |access-date=2015-12-31 |archive-date=2018-02-01 |archive-url=https://web.archive.org/web/20180201043609/http://nameexoworlds.iau.org/names |url-status=dead }}

References

{{reflist|refs=

{{cite journal | title=A Planetary Companion to the G-Type Giant Star HD 104985 | last1=Sato | first1=Bun'ei | last2=Ando | first2=Hiroyasu | last3=Kambe | first3=Eiji | last4=Takeda | first4=Yoichi | last5=Izumiura | first5=Hideyuki | last6=Masuda | first6=Seiji | last7=Watanabe | first7=Etsuji | last8=Noguchi | first8=Kunio | last9=Wada | first9=Setsuko | last10=Okada | first10=Norio | last11=Koyano | first11=Hisashi | last12=Maehara | first12=Hideo | last13=Norimoto | first13=Yuji | last14=Okada | first14=Takafumi | last15=Shimizu | first15=Yasuhiro | last16=Uraguchi | first16=Fumihiro | last17=Yanagisawa | first17=Kenshi | last18=Yoshida | first18=Michitoshi | display-authors=1 | journal=The Astrophysical Journal Letters | volume=597 | issue=2 | pages=L157–L160 | date=2003 | bibcode=2003ApJ...597L.157S | doi=10.1086/379967 | doi-access=free }}

{{cite journal | title=Planetary Companions around Three Intermediate-Mass G and K Giants: 18 Delphini, ξ Aquilae and HD 81688 | url=http://pasj.asj.or.jp/v60/n3/600314/600314-frame.html | last1=Sato | first1=Bun'ei | last2=Izumiura | first2=Hideyuki | last3=Toyota | first3=Eri | last4=Kambe | first4=Eiji | last5=Ikoma | first5=Masahiro | last6=Omiya | first6=Masashi | last7=Masuda | first7=Seiji | last8=Takeda | first8=Yoichi | last9=Murata | first9=Daisuke | last10=Itoh | first10=Yoichi | last11=Ando | first11=Hiroyasu | last12=Yoshida | first12=Michitoshi | last13=Kokubo | first13=Eiichiro | last14=Ida | first14=Shigeru | display-authors=1 | journal=Publications of the Astronomical Society of Japan | volume=60 | issue=3 | pages=539–550 | date=2008 | arxiv=0802.2590 | bibcode=2008PASJ...60..539S | doi=10.1093/pasj/60.3.539}}

}}

External links

{{cite web | url=http://media4.obspm.fr/exoplanets/base/etoile.php?nom=HD+ | title=HD | work=Exoplanets | access-date=2008-11-04 | archive-url=https://web.archive.org/web/20120304130331/http://media4.obspm.fr/exoplanets/base/etoile.php?nom=HD+ | archive-date=2012-03-04 | url-status=dead }}
[https://web.archive.org/web/20170312064429/http://media4.obspm.fr/exoplanets/base/planete.php?etoile=HD+104985&planete=b Orbit simulation]

Category:Exoplanets discovered in 2003

Category:Giant planets

Category:Camelopardalis

Category:Exoplanets detected by radial velocity

Category:Exoplanets with proper names