Finding Earth 2.0
AB Aur

AB Aur b

Discovered by Imaging in 2022

unknownmeasured

Earth-2.0 index

0.171

Earth Similarity Index

Habitable-zone probability

12.50 R⊕

Radius

Planet

Mass2860.456 M⊕measured
Bulk density8.050 g/cm³
Orbital period— days
Semi-major axis93.90000 au
Eccentricity0.400
Incident flux0.007 S⊕
Equilibrium temperature72.7 K
Maximum angular separation579.18 masReflected-light contrast 3.08e-12 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 coverage55%0% median composite-to-default difference over shared parameters.

Host star & system

HostAB Aur
Spectral typeA
Effective temperature9770 K
Radius2.959 R☉
Mass2.400 M☉
Distance162.1 pc / 528.8 ly
DiscoveryImaging, 2022