Finding Earth 2.0
HD 82943 · G2/3V

HD 82943 c

Rank #680 of the ranked catalogue · Discovered by Radial Velocity in 2003

HZ 0%measured

0.111

Earth-2.0 index

0.386

Earth Similarity Index

0%

Habitable-zone probability

13.40 R⊕

Radius

Planet

Mass622.603 M⊕measured
Bulk density1.420 g/cm³
Orbital period220.0780 days
Semi-major axis0.74345 au
Eccentricity0.366
Incident flux2.829 S⊕
Equilibrium temperature329.7 K
Maximum angular separation26.95 masReflected-light contrast 5.64e-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 coverage67%0% median composite-to-default difference over shared parameters.

Host star & system

HostHD 82943
Spectral typeG2/3V
Effective temperature5935 K
Radius1.183 R☉
Mass1.080 M☉
Distance27.6 pc / 90.0 ly
DiscoveryRadial Velocity, 2003