Finding Earth 2.0
HD 121504 · G2 V

HD 121504 b

Rank #3129 of the ranked catalogue · Discovered by Radial Velocity in 2003

HZ 0%M sin i

0.087

Earth-2.0 index

0.261

Earth Similarity Index

0%

Habitable-zone probability

13.60 R⊕

Radius

Planet

Mass479.923 M⊕M sin i
Bulk density1.050 g/cm³
Orbital period63.3300 days
Semi-major axis0.33000 au
Eccentricity0.030
Incident flux14.222 S⊕
Equilibrium temperature493.6 K
Maximum angular separation7.92 masReflected-light contrast 2.95e-7 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 121504
Spectral typeG2 V
Effective temperature6027 K
Radius1.070 R☉
Mass1.620 M☉
Distance41.7 pc / 135.9 ly
DiscoveryRadial Velocity, 2003