HD 117618 b

HD 117618 b / Noifasui
Discovery
Discovered byC.G. Tinney, Butler,
Marcy et al.[1]
Discovery siteAnglo-Australian Observatory
Discovery date16 September 2004
Radial velocity
Orbital characteristics
Apastron0.250 AU (37,400,000 km)
Periastron0.102 AU (15,300,000 km)
0.176 ± 0.010 AU (26,300,000 ± 1,500,000 km)
Eccentricity0.42 ± 0.17
25.827 ± 0.019 d
0.070709 y
74.4
2,450,832.2 ± 1.8
254 ± 19
Semi-amplitude12.8 ± 2.2
StarHD 117618
Physical characteristics
Mass>0.178 ± 0.021 MJ
(>56.5 ME)

HD 117618 b, named Noifasui by the IAU,[2] is an exoplanet discovered orbiting the star HD 117618 in September 2004. The planet is a small gas giant less than a fifth the mass of Jupiter. It orbits close to its star in a very eccentric orbit.[1][3]

  1. ^ a b Cite error: The named reference Tinney2005 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference IAU Approved was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Butler2006 was invoked but never defined (see the help page).