HD 183263

 HD 183263 Planetary System
Yellow Sub Giant

 Location
Constellation:  Aquila
Right Ascension:  19 28 24.5727
Declination:  +08 21 28.995
Distance from Sol:  172.86 Light Years

 Basic Stellar Data
Spectral Type:  G2 IV
Apparent Magnitude:  7.86
Mass:  1.17 Solar Masses
Radius:  1.35 Solar Radii
Effective Temperature:  5936 Kelvin
Metallicity:  0.3 [Fe/H]
1.99 times Solar

  Habitability
Inner Edge of Habitability Zone:  0.71 AU
Outer Edge of Habitability Zone:  2.22 AU
Estimated Stellar Lifespan  6243 million years
 System Components
(Mass in Multiples of Jupiter's Mass)

HD 183263 b
Water Giant, Eccentric

 Basic Data
Parent Star:  HD 183263 (G2 IV)
Discovery Status:  Confirmed
Planet Type:  Water Giant, Eccentric
Habitability:  Planet at Earthlike Temperatures at Mean Orbital Distance

 Habitability Zone

Mass ( M sin i ):  3.69 Jupiters
Periastron Distance:  0.94 AU
Mean Distance:  1.52 AU
Apastron Distance:  2.09 AU
Orbital Period:  634.23 Days
Eccentricity:  0.38
Argument of Perihelion (omega):  242°
Radial Velocity of Star:  85 m/s

 Inferred Properties
Average Angular Size of Star:  0.472°
Planet Appearance:
 White water ice clouds
Periastron Temp:  307 Kelvin
Mean Temp:  241 Kelvin
Apastron Temp:  205 Kelvin

  Discovery Facts
Year Discovered:  2005
Detection Method:  Doppler Spectroscopy
Discovered By:  Marcy et al