Finding Earth 2.0
HD 205739 · F7 V

HD 205739 b

Rank #1989 of the ranked catalogue · Discovered by Radial Velocity in 2008

HZ 0%M sin i

0.096

Earth-2.0 index

0.362

Earth Similarity Index

0%

Habitable-zone probability

13.60 R⊕

Radius

Planet

Mass435.410 M⊕M sin i
Bulk density0.951 g/cm³
Orbital period279.8000 days
Semi-major axis0.89600 au
Eccentricity0.270
Incident flux2.853 S⊕
Equilibrium temperature330.4 K
Maximum angular separation9.69 masReflected-light contrast 4.00e-8 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 205739
Spectral typeF7 V
Effective temperature6176 K
Radius1.330 R☉
Mass1.220 M☉
Distance92.5 pc / 301.7 ly
DiscoveryRadial Velocity, 2008