Finding Earth 2.0
HD 183263 · G2 IV

HD 183263 c

Rank #1727 of the ranked catalogue · Discovered by Radial Velocity in 2008

HZ 0%measured

0.098

Earth-2.0 index

0.276

Earth Similarity Index

0%

Habitable-zone probability

12.50 R⊕

Radius

Planet

Mass2958.983 M⊕measured
Bulk density8.320 g/cm³
Orbital period4667.9784 days
Semi-major axis5.58500 au
Eccentricity0.051
Incident flux0.057 S⊕
Equilibrium temperature124.2 K
Maximum angular separation103.05 masReflected-light contrast 8.70e-10 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources7 · 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 183263
Spectral typeG2 IV
Effective temperature5948 K
Radius1.230 R☉
Mass1.060 M☉
Distance54.2 pc / 176.8 ly
DiscoveryRadial Velocity, 2008