Planet Gl 581 g

Name Gl 581 g
Discovered in 2010
M × sin i 0.01 MJ
Semi-major axis 0.14601 (± 0.00014) AU
Orbital period 36.652 (± 0.052) day
Eccentricity
ω
Tperi
Radius
Inclination
Update Sept. 13, 2011
Detection method controversial
Molecules detected
Primary transit
Secondary transit
Anomaly angle
Time Vr=0
Calculated temperature
Measured temperature
Hottest point longitute
Surface gravity log(g/gH)

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
RA2000 15:19:26.0
Dec2000 -07:43:20
Planetary system 6 planets

More data


Related publications

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A Consistent Orbital Stability Analysis for the GJ 581 System
April 18, 2014 JOINER, D., SUL, C. DRAGOMIR, D., KANE, S. & M. KRESS
ApJ, accepted
arxiv 

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April 3, 2014 SHCHEKINOV Y., SAFONOVA M. & MURTHY J.
ApJ, submitted
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July 5, 2013 HATZES A.
Astron. Nachr., accepted
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Content
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Astron. & Astrophys.
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