Finding Earth 2.0
HD 217786 · F8 V

HD 217786 c

Rank #4994 of the ranked catalogue · Discovered by Radial Velocity in 2022

HZ 0%M sin i

0.068

Earth-2.0 index

0.131

Earth Similarity Index

0%

Habitable-zone probability

2.61 R⊕

Radius

Planet

Mass7.310 M⊕M sin i
Bulk density2.260 g/cm³
Orbital period2.5222 days
Semi-major axis0.03800 au
Eccentricity0.399
Incident flux1308.864 S⊕
Equilibrium temperature1528.9 K
Maximum angular separation0.69 masReflected-light contrast 8.19e-7 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 coverage50%0% median composite-to-default difference over shared parameters.

Host star & system

HostHD 217786
Spectral typeF8 V
Effective temperature5966 K
Radius1.270 R☉
Mass1.140 M☉
Distance55.5 pc / 181.0 ly
DiscoveryRadial Velocity, 2022