Finding Earth 2.0
KMT-2025-BLG-0121L

KMT-2025-BLG-0121L b

Discovered by Microlensing in 2026

unknownmeasured

Earth-2.0 index

Earth Similarity Index

Habitable-zone probability

12.60 R⊕

Radius

Planet

Mass2469.527 M⊕measured
Bulk density6.780 g/cm³
Orbital period— days
Semi-major axis3.05000 au
Eccentricity
Incident flux— S⊕
Equilibrium temperature— K
Maximum angular separation0.49 masReflected-light contrast 2.96e-9 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

HostKMT-2025-BLG-0121L
Spectral type
Effective temperature— K
Radius— R☉
Mass0.610 M☉
Distance6200.0 pc / 20221.7 ly
DiscoveryMicrolensing, 2026