Finding Earth 2.0
HD 187123 · G3 V

HD 187123 c

Rank #1762 of the ranked catalogue · Discovered by Radial Velocity in 2008

HZ 0%measured

0.098

Earth-2.0 index

0.274

Earth Similarity Index

0%

Habitable-zone probability

13.20 R⊕

Radius

Planet

Mass912.168 M⊕measured
Bulk density2.180 g/cm³
Orbital period3810.0000 days
Semi-major axis4.89000 au
Eccentricity0.252
Incident flux0.056 S⊕
Equilibrium temperature123.7 K
Maximum angular separation106.41 masReflected-light contrast 1.26e-9 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources5 · 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 187123
Spectral typeG3 V
Effective temperature5790 K
Radius1.150 R☉
Mass1.040 M☉
Distance46.0 pc / 149.9 ly
DiscoveryRadial Velocity, 2008