Finding Earth 2.0
OGLE-2017-BLG-0173L

OGLE-2017-BLG-0173L b

Discovered by Microlensing in 2018

unknownmeasured

Earth-2.0 index

Earth Similarity Index

Habitable-zone probability

1.62 R⊕

Radius

Planet

Mass3.269 M⊕measured
Bulk density4.230 g/cm³
Orbital period— days
Semi-major axis3.91300 au
Eccentricity
Incident flux— S⊕
Equilibrium temperature— K
Maximum angular separation0.83 masReflected-light contrast 2.98e-11 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-0173L
Spectral type
Effective temperature— K
Radius— R☉
Mass0.396 M☉
Distance4705.0 pc / 15345.6 ly
DiscoveryMicrolensing, 2018