Finding Earth 2.0
HD 27442 · K1/2III

HD 27442 b

Rank #1704 of the ranked catalogue · Discovered by Radial Velocity in 2000

HZ 0%M sin i

0.099

Earth-2.0 index

0.341

Earth Similarity Index

0%

Habitable-zone probability

13.50 R⊕

Radius

Planet

Mass495.800 M⊕M sin i
Bulk density1.110 g/cm³
Orbital period428.1000 days
Semi-major axis1.27100 au
Eccentricity0.060
Incident flux4.391 S⊕
Equilibrium temperature368.0 K
Maximum angular separation69.57 masReflected-light contrast 1.96e-8 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources6 · mixedThe archive may select different publications for different parameters; mixed-source is disclosed, not automatically penalised.
Default-solution coverage58%0% median composite-to-default difference over shared parameters.

Host star & system

HostHD 27442
Spectral typeK1/2III
Effective temperature4846 K
Radius3.180 R☉
Mass1.230 M☉
Distance18.3 pc / 59.6 ly
DiscoveryRadial Velocity, 2000