Finding Earth 2.0
HD 20781 · K0 V

HD 20781 e

Rank #684 of the ranked catalogue · Discovered by Radial Velocity in 2019

HZ 0%M sin i

0.111

Earth-2.0 index

0.490

Earth Similarity Index

0%

Habitable-zone probability

3.83 R⊕

Radius

Planet

Mass14.030 M⊕M sin i
Bulk density1.370 g/cm³
Orbital period85.5073 days
Semi-major axis0.33740 au
Eccentricity0.060
Incident flux4.304 S⊕
Equilibrium temperature366.1 K
Maximum angular separation9.38 masReflected-light contrast 2.24e-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 20781
Spectral typeK0 V
Effective temperature5256 K
Radius0.834 R☉
Mass0.700 M☉
Distance36.0 pc / 117.3 ly
DiscoveryRadial Velocity, 2019