Finding Earth 2.0
HD 42012 · K0

HD 42012 b

Rank #1986 of the ranked catalogue · Discovered by Radial Velocity in 2017

HZ 0%M sin i

0.096

Earth-2.0 index

0.330

Earth Similarity Index

0%

Habitable-zone probability

13.50 R⊕

Radius

Planet

Mass508.528 M⊕M sin i
Bulk density1.140 g/cm³
Orbital period857.5000 days
Semi-major axis1.67000 au
Eccentricity0.200
Incident flux0.193 S⊕
Equilibrium temperature168.4 K
Maximum angular separation45.38 masReflected-light contrast 1.13e-8 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources4 · 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

HostHD 42012
Spectral typeK0
Effective temperature5405 K
Radius0.820 R☉
Mass0.830 M☉
Distance36.8 pc / 120.0 ly
DiscoveryRadial Velocity, 2017