Planet Gl 581 g

Name Gl 581 g
Discovered in 2010
Mass 0.01 MJ
Semi-major axis 0.14601 (± 0.00014) AU
Orbital period 36.652 (± 0.052) day
Eccentricity
ω
Tperi
Radius
Inclination
Update April 18, 2014
Detection Method Controversial
Mass Detection Method
Radius Detection method
Molecules detected
Primary transit
Secondary transit
Anomaly angle
impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature
Hottest point longitute
Surface gravity log(g/gH)
Alternate Names

Graphical Ephemeris (Beta Version)

Remarks

13 Sep 2011: Planet Gl 581 g not found by Forveille et al. 2011 either with keplerian fit or circular orbits for Gl 581 b,c,d,e
02 Nov 2010: Anglada-Escude (2010) investigates the degeneracy deriving from the aliasing of eccentric harmonics of an already detected planet and finds that "though the statistical degeneracy is clearly present, the existence of GJ 581g remains well supported by the available data".
11 Oct 2010: The planet Gl581 g not present in new HARPS data Pepe et al. 2010 - IAU Symposium 276)

Star

Name Gl 581
Distance 6.21 (± 0.1) pc
Spectral type M2.5V
Apparent magnitude V 10.55
Mass 0.31 (± 0.02) MSun
Age 8.0 ( -1.0 +1.0 ) Gyr
Effective temperature 3498.0 (± 56.0) K
Radius 0.3 (± 0.01) RSun
Metallicity [Fe/H] -0.135
Detected Disc
Magnetic Field
RA2000 15:19:26.0
Dec2000 -07:43:20
Alternate Names
Planetary system 3 planets

More data


Related publications

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