Finding Earth 2.0
HD 164604 · K3.5 V

HD 164604 c

Rank #3856 of the ranked catalogue · Discovered by Radial Velocity in 2026

HZ 0%measured

0.081

Earth-2.0 index

0.169

Earth Similarity Index

0%

Habitable-zone probability

12.50 R⊕

Radius

Planet

Mass3019.370 M⊕measured
Bulk density8.490 g/cm³
Orbital period5387.0000 days
Semi-major axis5.55600 au
Eccentricity0.196
Incident flux0.008 S⊕
Equilibrium temperature77.0 K
Maximum angular separation141.15 masReflected-light contrast 8.79e-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 164604
Spectral typeK3.5 V
Effective temperature4663 K
Radius0.780 R☉
Mass0.770 M☉
Distance39.4 pc / 128.4 ly
DiscoveryRadial Velocity, 2026