Finding Earth 2.0
HD 102888 · G8 III

HD 102888 b

Rank #3101 of the ranked catalogue · Discovered by Radial Velocity in 2025

HZ 0%M sin i

0.087

Earth-2.0 index

0.249

Earth Similarity Index

0%

Habitable-zone probability

12.80 R⊕

Radius

Planet

Mass1808.444 M⊕M sin i
Bulk density4.740 g/cm³
Orbital period252.0600 days
Semi-major axis1.05000 au
Eccentricity0.110
Incident flux37.451 S⊕
Equilibrium temperature628.8 K
Maximum angular separation8.30 masReflected-light contrast 2.58e-8 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 coverage67%0% median composite-to-default difference over shared parameters.

Host star & system

HostHD 102888
Spectral typeG8 III
Effective temperature4990 K
Radius8.600 R☉
Mass2.420 M☉
Distance126.5 pc / 412.5 ly
DiscoveryRadial Velocity, 2025