Finding Earth 2.0
K2-99 · G0 IV

K2-99 b

Rank #4590 of the ranked catalogue · Discovered by Transit in 2016

HZ 0%measured

0.073

Earth-2.0 index

0.115

Earth Similarity Index

0%

Habitable-zone probability

11.88 R⊕

Radius

Planet

Mass276.511 M⊕measured
Bulk density0.900 g/cm³
Orbital period18.2478 days
Semi-major axis0.15300 au
Eccentricity0.220
Incident flux357.000 S⊕
Equilibrium temperature1104.9 K
Transit-time σ at 203010.3 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.29 masReflected-light contrast 1.05e-6 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 coverage83%0% median composite-to-default difference over shared parameters.

Host star & system

HostK2-99
Spectral typeG0 IV
Effective temperature6069 K
Radius2.550 R☉
Mass1.440 M☉
Distance519.2 pc / 1693.5 ly
DiscoveryTransit, 2016