Finding Earth 2.0
CHXR 73 · M3.5

CHXR 73 b

Discovered by Imaging in 2006

unknownmeasured

Earth-2.0 index

Earth Similarity Index

Habitable-zone probability

12.30 R⊕

Radius

Planet

Mass3994.486 M⊕measured
Bulk density11.800 g/cm³
Orbital period— days
Semi-major axis210.00000 au
Eccentricity
Incident flux— S⊕
Equilibrium temperature— K
Maximum angular separation1103.09 masReflected-light contrast 6.00e-13 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 coverage57%0% median composite-to-default difference over shared parameters.

Host star & system

HostCHXR 73
Spectral typeM3.5
Effective temperature3099 K
Radius— R☉
Mass0.350 M☉
Distance190.4 pc / 620.9 ly
DiscoveryImaging, 2006