Finding Earth 2.0
HIP 81208 C · M

HIP 81208 C b

Discovered by Imaging in 2023

unknownmeasured

Earth-2.0 index

Earth Similarity Index

Habitable-zone probability

12.30 R⊕

Radius

Planet

Mass4703.860 M⊕measured
Bulk density13.900 g/cm³
Orbital period104100.0000 days
Semi-major axis23.04000 au
Eccentricity
Incident flux— S⊕
Equilibrium temperature2050.0 K
Maximum angular separation156.17 masReflected-light contrast 4.95e-11 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

HostHIP 81208 C
Spectral typeM
Effective temperature— K
Radius— R☉
Mass0.135 M☉
Distance147.5 pc / 481.2 ly
DiscoveryImaging, 2023