Finding Earth 2.0
HD 18599 · K2 V

HD 18599 b

Rank #1928 of the ranked catalogue · Discovered by Transit in 2022

HZ 0%measured

0.097

Earth-2.0 index

0.252

Earth Similarity Index

0%

Habitable-zone probability

2.60 R⊕

Radius

Planet

Mass24.100 M⊕measured
Bulk density7.500 g/cm³
Orbital period4.1374 days
Semi-major axis0.04800 au
Eccentricity0.340
Incident flux145.000 S⊕
Equilibrium temperature882.1 K
Transit-time σ at 20304.5 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation1.25 masReflected-light contrast 5.09e-7 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

HostHD 18599
Spectral typeK2 V
Effective temperature5145 K
Radius0.767 R☉
Mass0.863 M☉
Distance38.6 pc / 125.8 ly
DiscoveryTransit, 2022