Finding Earth 2.0
HD 216770 · G9 V CN+1

HD 216770 b

Rank #2746 of the ranked catalogue · Discovered by Radial Velocity in 2003

HZ 0%M sin i

0.090

Earth-2.0 index

0.287

Earth Similarity Index

0%

Habitable-zone probability

14.10 R⊕

Radius

Planet

Mass181.163 M⊕M sin i
Bulk density0.355 g/cm³
Orbital period118.4500 days
Semi-major axis0.46000 au
Eccentricity0.370
Incident flux3.754 S⊕
Equilibrium temperature353.8 K
Maximum angular separation12.55 masReflected-light contrast 1.63e-7 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources4 · 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 216770
Spectral typeG9 V CN+1
Effective temperature5399 K
Radius0.930 R☉
Mass0.740 M☉
Distance36.7 pc / 119.6 ly
DiscoveryRadial Velocity, 2003