Finding Earth 2.0
OGLE-2017-BLG-0640L

OGLE-2017-BLG-0640L b

Discovered by Microlensing in 2024

unknownmeasured

Earth-2.0 index

Earth Similarity Index

Habitable-zone probability

13.50 R⊕

Radius

Planet

Mass514.882 M⊕measured
Bulk density1.150 g/cm³
Orbital period— days
Semi-major axis1.14000 au
Eccentricity
Incident flux— S⊕
Equilibrium temperature— K
Maximum angular separation0.17 masReflected-light contrast 2.43e-8 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources2 · 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

HostOGLE-2017-BLG-0640L
Spectral type
Effective temperature— K
Radius— R☉
Mass0.320 M☉
Distance6630.0 pc / 21624.1 ly
DiscoveryMicrolensing, 2024