Finding Earth 2.0
HD 154391 · K1 III

HD 154391 b

Rank #456 of the ranked catalogue · Discovered by Radial Velocity in 2023

HZ 100%measured

0.115

Earth-2.0 index

0.465

Earth Similarity Index

100%

Habitable-zone probability

12.50 R⊕

Radius

Planet

Mass2892.238 M⊕measured
Bulk density8.140 g/cm³
Orbital period5163.0000 days
Semi-major axis7.46000 au
Eccentricity0.200
Incident flux0.685 S⊕
Equilibrium temperature231.3 K
Maximum angular separation73.90 masReflected-light contrast 4.87e-10 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources3 · 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

HostHD 154391
Spectral typeK1 III
Effective temperature4909 K
Radius8.560 R☉
Mass2.070 M☉
Distance100.9 pc / 329.2 ly
DiscoveryRadial Velocity, 2023