55 Cnc · G8 V
55 Cnc c
Rank #1680 of the ranked catalogue · Discovered by Radial Velocity in 2004
HZ 0%measured
0.099
Earth-2.0 index
0.279
Earth Similarity Index
0%
Habitable-zone probability
8.51 R⊕
Radius
Planet
Mass54.474 M⊕measured
Bulk density0.486 g/cm³
Orbital period44.3936 days
Semi-major axis0.24700 au
Eccentricity0.088
Incident flux10.415 S⊕
Equilibrium temperature456.6 K
Maximum angular separation19.63 masReflected-light contrast 2.06e-7 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources5 · mixedThe archive may select different publications for different parameters; mixed-source is disclosed, not automatically penalised.
Default-solution coverage67%0% median composite-to-default difference over shared parameters.
Host star & system
Host55 Cnc
Spectral typeG8 V
Effective temperature5198 K
Radius0.980 R☉
Mass1.015 M☉
Distance12.6 pc / 41.0 ly
DiscoveryRadial Velocity, 2004