4 UMa · K1 III
4 UMa b
Rank #4261 of the ranked catalogue · Discovered by Radial Velocity in 2006
HZ 0%M sin i
0.077
Earth-2.0 index
0.167
Earth Similarity Index
0%
Habitable-zone probability
12.60 R⊕
Radius
Planet
Mass2511.480 M⊕M sin i
Bulk density6.900 g/cm³
Orbital period270.2700 days
Semi-major axis0.87700 au
Eccentricity0.453
Incident flux150.093 S⊕
Equilibrium temperature889.7 K
Maximum angular separation11.94 masReflected-light contrast 3.58e-8 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
Host4 UMa
Spectral typeK1 III
Effective temperature4415 K
Radius18.110 R☉
Mass1.234 M☉
Distance73.5 pc / 239.6 ly
DiscoveryRadial Velocity, 2006