Finding Earth 2.0
HD 30177 · G8 V

HD 30177 b

Rank #1180 of the ranked catalogue · Discovered by Radial Velocity in 2002

HZ 0%measured

0.104

Earth-2.0 index

0.323

Earth Similarity Index

0%

Habitable-zone probability

12.60 R⊕

Radius

Planet

Mass2622.084 M⊕measured
Bulk density7.200 g/cm³
Orbital period2539.0000 days
Semi-major axis3.49000 au
Eccentricity0.186
Incident flux0.100 S⊕
Equilibrium temperature142.8 K
Maximum angular separation62.78 masReflected-light contrast 2.26e-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 coverage58%0% median composite-to-default difference over shared parameters.

Host star & system

HostHD 30177
Spectral typeG8 V
Effective temperature5680 K
Radius1.019 R☉
Mass0.980 M☉
Distance55.6 pc / 181.3 ly
DiscoveryRadial Velocity, 2002