Finding Earth 2.0
HD 103891 · F9

HD 103891 b

Rank #466 of the ranked catalogue · Discovered by Radial Velocity in 2022

HZ 100%measured

0.115

Earth-2.0 index

0.449

Earth Similarity Index

100%

Habitable-zone probability

13.20 R⊕

Radius

Planet

Mass918.524 M⊕measured
Bulk density2.190 g/cm³
Orbital period1919.0000 days
Semi-major axis3.27000 au
Eccentricity0.310
Incident flux0.571 S⊕
Equilibrium temperature221.0 K
Maximum angular separation58.90 masReflected-light contrast 2.83e-9 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 103891
Spectral typeF9
Effective temperature6072 K
Radius2.220 R☉
Mass1.280 M☉
Distance55.5 pc / 181.1 ly
DiscoveryRadial Velocity, 2022