HD 104985 b, also named Meztli /ˈmɛstli/, is an extrasolar planet approximately 97 parsecs (317 lys) from the SunThe 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.[1][2]

HD 104985 b

Discovery
Discovered by	Sato et al.[1]
Discovery site	Okayama Planet Search Program  Japan
Discovery date	June 26, 2003
Detection method	radial velocity
Orbital characteristics
Apastron	0.80 AU (120,000,000 km)
Periastron	0.76 AU (114,000,000 km)
Semi-major axis	0.78 AU (117,000,000 km)
Eccentricity	0.03 ± 0.02
Orbital period (sidereal)	198.2 ± 0.3 d 0.5426 ± 0.0008 y
Average orbital speed	43
Time of periastron	2451990 ± 20
Argument of periastron	310 ± 30
Semi-amplitude	161 ± 2
Star	HD 104985

Following its discovery in 2003[1] 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.[3] The process involved public nomination and voting for the new names.[4] In December 2015, the IAU announced the winning name was Meztli for this planet.[5] The winning name was submitted by the Sociedad Astronomica Urania of Morelos, Mexico. 'Meztli' was the Aztec goddess of the Moon.[6]

References

External links

• "HD". Exoplanets. Archived from the original on 2012-03-04. Retrieved 2008-11-04.
• Orbit simulation

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На других языках

[de] Meztli

[ru] Мецтли (экзопланета)