Finding Earth 2.0
HD 177830 · K0

HD 177830 c

Rank #3031 of the ranked catalogue · Discovered by Radial Velocity in 2010

HZ 0%M sin i

0.088

Earth-2.0 index

0.255

Earth Similarity Index

0%

Habitable-zone probability

7.87 R⊕

Radius

Planet

Mass47.672 M⊕M sin i
Bulk density0.537 g/cm³
Orbital period110.9000 days
Semi-major axis0.51370 au
Eccentricity0.300
Incident flux18.349 S⊕
Equilibrium temperature526.1 K
Maximum angular separation8.18 masReflected-light contrast 4.07e-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 177830
Spectral typeK0
Effective temperature4949 K
Radius2.620 R☉
Mass1.470 M☉
Distance62.8 pc / 204.7 ly
DiscoveryRadial Velocity, 2010