» Extrasolar Planet Guide » mu Arae » mu Arae c


Ammonia Cloud Jovian, Eccentric
Object Type: Ammonia Cloud Jovian, Eccentric
Parent Star: mu Arae (G3 IV-V)
Discovery Status: Confirmed
Orbit of mu Arae c Current Planet
Habitability Zone Habitability Zone
Mass ( M sin i ): 3.1 ± 0.71 Jupiters
Periastron Distance: 1.79 AU
Mean Distance: 4.17 AU
Apastron Distance: 6.54 AU
Orbital Period: 2986 ± 30 Days
Eccentricity: 0.57 ± 0.1
Argument of Perihelion (omega):
161 °
System Age: > 2000 Myr
Planet Appearance:
White ammonia and water ice clouds, brown hydrocarbon stains
Estimated Radius:
1.062 Jupiters 1
Estimated Periastron Temp: 219 Kelvin
Estimated Mean Temp: 144 Kelvin
Estimated Apastron Temp: 115 Kelvin
Temp from
Internal Heating :

205.334 Kelvins 2
Max Angular Star Size: 0.413°
Mean Angular Star Size: 0.177°
Min Angular Star Size: 0.113°
Gravitational Influence
(Hill Sphere):
0.404 AU / 60520000 km
Max Stable Prograde Moon Orbit: 0.145 AU / 21780000 km
Max Moon Mass: > 10 Earths 3
Tidally locked if older than: > 20 Gyr 4
Estimated Bond Albedo: ~ 0.55 5
Notes:
     1 from planet formation models of Burrows et al
     2 from planet formation models of Burrows et al
     3 based on periastron due to high eccentricity
     4 orbit may be too eccentric for 1:1 tidal lock
     5 from Sudarsky et al. 2000
Year Discovered: 13 Jun 2002
Detection Method: Doppler Spectroscopy
Discovered By: H.R.A.Jones

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