Finding Earth 2.0
HAT-P-3 · K1

HAT-P-3 b

Rank #3989 of the ranked catalogue · Discovered by Transit in 2007

HZ 0%measured

0.080

Earth-2.0 index

0.146

Earth Similarity Index

0%

Habitable-zone probability

10.54 R⊕

Radius

Planet

Mass206.589 M⊕measured
Bulk density0.855 g/cm³
Orbital period2.8997 days
Semi-major axis0.03866 au
Eccentricity0.000
Incident flux176.587 S⊕
Equilibrium temperature926.6 K
Transit-time σ at 2030182.6 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.29 masReflected-light contrast 1.29e-5 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources6 · 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

HostHAT-P-3
Spectral typeK1
Effective temperature5185 K
Radius0.870 R☉
Mass1.060 M☉
Distance134.6 pc / 438.9 ly
DiscoveryTransit, 2007