Finding Earth 2.0
Kepler-668

Kepler-668 b

Rank #2963 of the ranked catalogue · Discovered by Transit in 2016

HZ 0%inferred

0.088

Earth-2.0 index

0.287

Earth Similarity Index

0%

Habitable-zone probability

2.70 R⊕

Radius

Planet

Mass7.750 M⊕inferred
Bulk density2.160 g/cm³
Orbital period8.3539 days
Semi-major axis0.07680 au
Eccentricity0.000
Incident flux77.619 S⊕
Equilibrium temperature754.5 K
Transit-time σ at 203022.0 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.10 masReflected-light contrast 2.15e-7 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 coverage50%0% median composite-to-default difference over shared parameters.

Host star & system

HostKepler-668
Spectral typeG
Effective temperature5352 K
Radius0.820 R☉
Mass0.870 M☉
Distance784.6 pc / 2559.1 ly
DiscoveryTransit, 2016