» Extrasolar Planet Guide » Companions of Normal Stars » HD 111232 » HD 111232 b


Water Cloud Jovian
Object Type: Water Cloud Jovian
Parent Star: HD 111232 (G8 V)
Discovery Status: Confirmed
Orbit of HD 111232 b Current Planet
Habitability Zone Habitability Zone
Mass ( M sin i ): 6.8 Jupiters
Periastron Distance: 1.57 AU
Mean Distance: 1.97 AU
Apastron Distance: 2.36 AU
Orbital Period: 1143 ± 14 Days
Eccentricity: 0.2 ± 0.01
Argument of Perihelion (omega):
98 °
Planet Appearance:
White water ice clouds
Estimated Radius:
1.026 Jupiters 1
Estimated Periastron Temp: 182 Kelvin
Estimated Mean Temp: 162 Kelvin
Estimated Apastron Temp: 148 Kelvin
Temp from
Internal Heating :

230.175 Kelvins 2
Max Angular Star Size: 0.284°
Mean Angular Star Size: 0.226°
Min Angular Star Size: 0.189°
Gravitational Influence
(Hill Sphere):
0.276 AU / 41400000 km
Max Stable Prograde Moon Orbit: 0.099 AU / 14900000 km
Max Moon Mass: > 10 Earths 3,4
Tidally locked if older than: > 20 Gyr 5
Estimated Bond Albedo: ~ 0.79 6
Notes:
     1 from planet formation models of Burrows et al
     2 from planet formation models of Burrows et al
     3 assuming age of 5 Gyr
     4 based on periastron due to high eccentricity
     5 orbit may be too eccentric for 1:1 tidal lock
     6 from Sudarsky et al. 2000
Year Discovered: 2003
Detection Method: Doppler Spectroscopy
Discovered By: MAYOR M. et al

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