Finding Earth 2.0
HD 202206 · G2 V

HD 202206 b

Rank #1038 of the ranked catalogue · Discovered by Radial Velocity in 2026

HZ 0%measured

0.106

Earth-2.0 index

0.354

Earth Similarity Index

0%

Habitable-zone probability

12.10 R⊕

Radius

Planet

Mass6849.202 M⊕measured
Bulk density21.200 g/cm³
Orbital period256.2600 days
Semi-major axis0.81000 au
Eccentricity0.426
Incident flux1.661 S⊕
Equilibrium temperature288.6 K
Maximum angular separation17.62 masReflected-light contrast 3.87e-8 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 202206
Spectral typeG2 V
Effective temperature5764 K
Radius1.040 R☉
Mass1.060 M☉
Distance46.0 pc / 149.9 ly
DiscoveryRadial Velocity, 2026