Finding Earth 2.0
HD 210193 · G3 V

HD 210193 b

Rank #2167 of the ranked catalogue · Discovered by Radial Velocity in 2019

HZ 100%M sin i

0.095

Earth-2.0 index

0.313

Earth Similarity Index

100%

Habitable-zone probability

14.30 R⊕

Radius

Planet

Mass153.100 M⊕M sin i
Bulk density0.288 g/cm³
Orbital period649.9180 days
Semi-major axis1.48700 au
Eccentricity0.240
Incident flux0.514 S⊕
Equilibrium temperature215.3 K
Maximum angular separation35.23 masReflected-light contrast 1.61e-8 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 coverage58%0% median composite-to-default difference over shared parameters.

Host star & system

HostHD 210193
Spectral typeG3 V
Effective temperature5790 K
Radius1.060 R☉
Mass1.040 M☉
Distance42.2 pc / 137.6 ly
DiscoveryRadial Velocity, 2019