Finding Earth 2.0
HD 31527 · G2 V

HD 31527 d

Rank #317 of the ranked catalogue · Discovered by Radial Velocity in 2019

HZ 0%M sin i

0.119

Earth-2.0 index

0.605

Earth Similarity Index

0%

Habitable-zone probability

3.46 R⊕

Radius

Planet

Mass11.820 M⊕M sin i
Bulk density1.570 g/cm³
Orbital period271.6737 days
Semi-major axis0.80980 au
Eccentricity0.240
Incident flux1.830 S⊕
Equilibrium temperature295.6 K
Maximum angular separation21.06 masReflected-light contrast 3.17e-9 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 coverage58%0% median composite-to-default difference over shared parameters.

Host star & system

HostHD 31527
Spectral typeG2 V
Effective temperature5898 K
Radius1.074 R☉
Mass0.960 M☉
Distance38.4 pc / 125.4 ly
DiscoveryRadial Velocity, 2019