» Extrasolar Planet Guide » HD 142 » HD 142 b


Sulfurous Cloud Jovian, Eccentric
Object Type: Sulfurous Cloud Jovian, Eccentric
Parent Star: HD 142 (G1 IV)
Discovery Status: Confirmed
Habitability: Planet at inner edge of Habitable Zone at Mean Orbital Distance
Orbit of HD 142 b Current Planet
Habitability Zone Habitability Zone
Mass ( M sin i ): 1 Jupiters
Periastron Distance: 0.6 AU
Mean Distance: 0.98 AU
Apastron Distance: 1.35 AU
Orbital Period: 337.112 Days
Eccentricity: 0.38
Argument of Perihelion (omega):
72 °
Radial Velocity of Star: 29.6 m/s
Planet Appearance:
Sulfur stained clouds of water or H2SO4
Estimated Radius:
0.997 Jupiters 1
Estimated Periastron Temp: 429 Kelvin
Estimated Mean Temp: 338 Kelvin
Estimated Apastron Temp: 288 Kelvin
Temp from
Internal Heating :

103.402 Kelvins 2
Max Angular Star Size: 1.507°
Mean Angular Star Size: 0.922°
Min Angular Star Size: 0.669°
Gravitational Influence
(Hill Sphere):
0.064 AU / 9690000 km
Max Stable Prograde Moon Orbit: 0.023 AU / 3480000 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: 2001
Detection Method: Doppler Spectroscopy
Discovered By: Vogt S., Butler P., Marcy G., Fischer D., Pourbaix D., Apps K., & Laughlin G.

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