Pollux b

Pollux b / Thestias
Artist's impression of Pollux b
Discovery[1]
Discovered byHatzes et al.
Discovery siteUnited States
Discovery date16 June 2006
Radial velocity
Designations
β Geminorum b, HD 62509 b, Thestias[2]
Orbital characteristics[1]
1.64 ± 0.27 AU (245 ± 40 million km)
Eccentricity0.02 ± 0.03
589.64 ± 0.81 d
1.61432 ± 0.00222 y
2,447,739.02 ± 4.5
Semi-amplitude41.0 ± 1.6
StarPollux
Physical characteristics[1]
Mass≥2.30±0.45 MJ

Pollux b, formally named Thestias /ˈθɛstiəs/, is an exoplanet candidate orbiting the star Pollux approximately 34 light-years away in the constellation of Gemini (the Twins). It is also designated β Geminorum b (Latinized to Beta Geminorum b, abbreviated β Gem b) or HD 62509 b. If this planet exists, it has a minimum mass of about twice the mass of Jupiter, and it moves around Pollux in 1.61 years at a distance of 1.64 AU in a nearly circular orbit.[1] However, its existence has been disputed.[3]

  1. ^ a b c d Cite error: The named reference Hatzes2006 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference iaunaming was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Aurière2021 was invoked but never defined (see the help page).