» Extrasolar Planet Guide » Companions of Normal Stars » HD 20367 » HD 20367 b


Water Cloud Jovian, Eccentric
Object Type: Water Cloud Jovian, Eccentric
Parent Star: HD 20367 (G0)
Discovery Status: Confirmed
Habitability: Planet at Earthlike Temperatures at Mean Orbital Distance
Orbit of HD 20367 b Current Planet
Habitability Zone Habitability Zone
Mass ( M sin i ): 1.07 Jupiters
Periastron Distance: 0.96 AU
Mean Distance: 1.25 AU
Apastron Distance: 1.53 AU
Orbital Period: 500 ± 6 Days
Eccentricity: 0.23 ± 0.1
Argument of Perihelion (omega):
83 °
Radial Velocity of Star: 27 m/s
Planet Appearance:
White water ice clouds
Estimated Radius:
0.999 Jupiters 1
Estimated Periastron Temp: 293 Kelvin
Estimated Mean Temp: 257 Kelvin
Estimated Apastron Temp: 232 Kelvin
Temp from
Internal Heating :

105.528 Kelvins 2
Max Angular Star Size: 0.681°
Mean Angular Star Size: 0.523°
Min Angular Star Size: 0.427°
Gravitational Influence
(Hill Sphere):
0.085 AU / 12840000 km
Max Stable Prograde Moon Orbit: 0.03 AU / 4620000 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: 18 Jun 2002
Detection Method: Doppler Spectroscopy
Discovered By: M. Mayor, D. Naef, F. Pepe, D. Queloz, N.C. Santos, S. Udry

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