HR 8799 · A5
HR 8799 e
Discovered by Imaging in 2010
unknownmeasured
—
Earth-2.0 index
0.207
Earth Similarity Index
—
Habitable-zone probability
13.11 R⊕
Radius
Planet
Mass3178.300 M⊕measured
Bulk density7.740 g/cm³
Orbital period20815.6000 days
Semi-major axis16.40000 au
Eccentricity0.150
Incident flux0.020 S⊕
Equilibrium temperature95.7 K
Maximum angular separation397.63 masReflected-light contrast 1.11e-10 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 coverage58%0% median composite-to-default difference over shared parameters.
Host star & system
HostHR 8799
Spectral typeA5
Effective temperature7400 K
Radius1.493 R☉
Mass1.510 M☉
Distance41.2 pc / 134.5 ly
DiscoveryImaging, 2010