Finding Earth 2.0
HD 4308 · G5V

HD 4308 b

Rank #3687 of the ranked catalogue · Discovered by Radial Velocity in 2005

HZ 0%M sin i

0.083

Earth-2.0 index

0.248

Earth Similarity Index

0%

Habitable-zone probability

4.12 R⊕

Radius

Planet

Mass15.892 M⊕M sin i
Bulk density1.250 g/cm³
Orbital period15.5600 days
Semi-major axis0.12000 au
Eccentricity0.000
Incident flux68.808 S⊕
Equilibrium temperature732.1 K
Maximum angular separation5.45 masReflected-light contrast 2.05e-7 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 4308
Spectral typeG5V
Effective temperature5686 K
Radius1.020 R☉
Mass0.930 M☉
Distance22.0 pc / 71.8 ly
DiscoveryRadial Velocity, 2005