Finding Earth 2.0
HD 181234 · G8 IV

HD 181234 b

Rank #3098 of the ranked catalogue · Discovered by Radial Velocity in 2019

HZ 0%measured

0.087

Earth-2.0 index

0.196

Earth Similarity Index

0%

Habitable-zone probability

12.50 R⊕

Radius

Planet

Mass2980.913 M⊕measured
Bulk density8.390 g/cm³
Orbital period7593.4051 days
Semi-major axis7.42700 au
Eccentricity0.726
Incident flux0.014 S⊕
Equilibrium temperature88.1 K
Maximum angular separation155.55 masReflected-light contrast 4.92e-10 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources7 · mixedThe archive may select different publications for different parameters; mixed-source is disclosed, not automatically penalised.
Default-solution coverage50%0% median composite-to-default difference over shared parameters.

Host star & system

HostHD 181234
Spectral typeG8 IV
Effective temperature5386 K
Radius1.059 R☉
Mass0.940 M☉
Distance47.7 pc / 155.7 ly
DiscoveryRadial Velocity, 2019