Finding Earth 2.0
HD 43691 · G0

HD 43691 b

Rank #3812 of the ranked catalogue · Discovered by Radial Velocity in 2007

HZ 0%M sin i

0.081

Earth-2.0 index

0.205

Earth Similarity Index

0%

Habitable-zone probability

13.20 R⊕

Radius

Planet

Mass810.466 M⊕M sin i
Bulk density1.940 g/cm³
Orbital period36.9987 days
Semi-major axis0.23800 au
Eccentricity0.080
Incident flux55.827 S⊕
Equilibrium temperature694.8 K
Maximum angular separation2.78 masReflected-light contrast 5.34e-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 coverage67%0% median composite-to-default difference over shared parameters.

Host star & system

HostHD 43691
Spectral typeG0
Effective temperature6093 K
Radius1.600 R☉
Mass1.320 M☉
Distance85.6 pc / 279.2 ly
DiscoveryRadial Velocity, 2007