HIP 99770 · A5-A6
HIP 99770 b
Discovered by Imaging in 2023
unknownmeasured
—
Earth-2.0 index
0.230
Earth Similarity Index
—
Habitable-zone probability
12.20 R⊕
Radius
Planet
Mass5403.083 M⊕measured
Bulk density16.400 g/cm³
Orbital period18600.0000 days
Semi-major axis15.80000 au
Eccentricity0.310
Incident flux0.056 S⊕
Equilibrium temperature123.4 K
Maximum angular separation394.25 masReflected-light contrast 1.03e-10 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 coverage42%0% median composite-to-default difference over shared parameters.
Host star & system
HostHIP 99770
Spectral typeA5-A6
Effective temperature8000 K
Radius1.940 R☉
Mass1.900 M☉
Distance40.1 pc / 130.7 ly
DiscoveryImaging, 2023