Finding Earth 2.0
Kepler-17 · G2 V

Kepler-17 b

Rank #5225 of the ranked catalogue · Discovered by Transit in 2011

HZ 0%measured

0.064

Earth-2.0 index

0.076

Earth Similarity Index

0%

Habitable-zone probability

14.68 R⊕

Radius

Planet

Mass778.650 M⊕measured
Bulk density1.350 g/cm³
Orbital period1.4857 days
Semi-major axis0.02591 au
Eccentricity0.011
Incident flux1481.766 S⊕
Equilibrium temperature1577.1 K
Transit-time σ at 20301.4 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.04 masReflected-light contrast 5.57e-5 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources4 · mixedThe archive may select different publications for different parameters; mixed-source is disclosed, not automatically penalised.
Default-solution coverage92%0% median composite-to-default difference over shared parameters.

Host star & system

HostKepler-17
Spectral typeG2 V
Effective temperature5781 K
Radius1.010 R☉
Mass1.040 M☉
Distance720.8 pc / 2350.8 ly
DiscoveryTransit, 2011