Finding Earth 2.0
G 261-6 · M5.5 V

G 261-6 b

Rank #85 of the ranked catalogue · Discovered by Radial Velocity in 2025

HZ 0%M sin i

0.135

Earth-2.0 index

0.870

Earth Similarity Index

0%

Habitable-zone probability

1.10 R⊕

Radius

Planet

Mass1.370 M⊕M sin i
Bulk density5.660 g/cm³
Orbital period5.4536 days
Semi-major axis0.02971 au
Eccentricity0.000
Incident flux1.800 S⊕
Equilibrium temperature294.4 K
Maximum angular separation2.80 masReflected-light contrast 2.38e-7 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

HostG 261-6
Spectral typeM5.5 V
Effective temperature2907 K
Radius0.153 R☉
Mass0.118 M☉
Distance10.6 pc / 34.7 ly
DiscoveryRadial Velocity, 2025