Finding Earth 2.0
LHS 1678 · M2.0 V

LHS 1678 d

Rank #366 of the ranked catalogue · Discovered by Transit in 2024

HZ 0%inferred

0.118

Earth-2.0 index

0.626

Earth Similarity Index

0%

Habitable-zone probability

0.98 R⊕

Radius

Planet

Mass0.907 M⊕inferred
Bulk density5.280 g/cm³
Orbital period4.9652 days
Semi-major axis0.04000 au
Eccentricity0.036
Incident flux9.100 S⊕
Equilibrium temperature441.5 K
Transit-time σ at 20309.8 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation2.01 masReflected-light contrast 1.04e-7 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources5 · mixedThe archive may select different publications for different parameters; mixed-source is disclosed, not automatically penalised.
Default-solution coverage75%0% median composite-to-default difference over shared parameters.

Host star & system

HostLHS 1678
Spectral typeM2.0 V
Effective temperature3490 K
Radius0.329 R☉
Mass0.345 M☉
Distance19.9 pc / 64.8 ly
DiscoveryTransit, 2024