Finding Earth 2.0
HD 28471 · G5 V

HD 28471 c

Rank #3581 of the ranked catalogue · Discovered by Radial Velocity in 2025

HZ 0%M sin i

0.083

Earth-2.0 index

0.218

Earth Similarity Index

0%

Habitable-zone probability

2.26 R⊕

Radius

Planet

Mass5.720 M⊕M sin i
Bulk density2.720 g/cm³
Orbital period6.1245 days
Semi-major axis0.06500 au
Eccentricity0.088
Incident flux272.802 S⊕
Equilibrium temperature1033.1 K
Maximum angular separation1.49 masReflected-light contrast 2.10e-7 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources3 · mixedThe archive may select different publications for different parameters; mixed-source is disclosed, not automatically penalised.
Default-solution coverage75%0% median composite-to-default difference over shared parameters.

Host star & system

HostHD 28471
Spectral typeG5 V
Effective temperature5766 K
Radius1.080 R☉
Mass0.980 M☉
Distance43.6 pc / 142.4 ly
DiscoveryRadial Velocity, 2025