Qatar-1
Qatar-1 b
Rank #4600 of the ranked catalogue · Discovered by Transit in 2010
HZ 0%measured
0.073
Earth-2.0 index
0.114
Earth Similarity Index
0%
Habitable-zone probability
12.81 R⊕
Radius
Planet
Mass411.272 M⊕measured
Bulk density1.076 g/cm³
Orbital period1.4200 days
Semi-major axis0.02332 au
Eccentricity0.000
Incident flux382.328 S⊕
Equilibrium temperature1124.0 K
Transit-time σ at 20301.4 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.13 masReflected-light contrast 5.24e-5 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources4 · mixedThe archive may select different publications for different parameters; mixed-source is disclosed, not automatically penalised.
Default-solution coverage92%0% median composite-to-default difference over shared parameters.
Host star & system
HostQatar-1
Spectral typeK
Effective temperature5013 K
Radius0.803 R☉
Mass0.838 M☉
Distance185.6 pc / 605.4 ly
DiscoveryTransit, 2010