Finding Earth 2.0
HD 4917 · K0 III/IV

HD 4917 b

Rank #3371 of the ranked catalogue · Discovered by Radial Velocity in 2018

HZ 0%M sin i

0.085

Earth-2.0 index

0.242

Earth Similarity Index

0%

Habitable-zone probability

13.50 R⊕

Radius

Planet

Mass513.295 M⊕M sin i
Bulk density1.150 g/cm³
Orbital period400.5000 days
Semi-major axis1.16700 au
Eccentricity0.066
Incident flux20.978 S⊕
Equilibrium temperature544.0 K
Maximum angular separation5.71 masReflected-light contrast 2.32e-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 4917
Spectral typeK0 III/IV
Effective temperature4802 K
Radius5.010 R☉
Mass1.320 M☉
Distance204.3 pc / 666.3 ly
DiscoveryRadial Velocity, 2018