Finding Earth 2.0
GJ 9404 · M2V

GJ 9404 b

Rank #1433 of the ranked catalogue · Discovered by Radial Velocity in 2023

HZ 2%M sin i

0.101

Earth-2.0 index

0.399

Earth Similarity Index

2%

Habitable-zone probability

3.48 R⊕

Radius

Planet

Mass11.900 M⊕M sin i
Bulk density1.550 g/cm³
Orbital period13.4586 days
Semi-major axis0.09430 au
Eccentricity0.490
Incident flux11.245 S⊕
Equilibrium temperature465.5 K
Maximum angular separation3.95 masReflected-light contrast 2.36e-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 coverage50%0% median composite-to-default difference over shared parameters.

Host star & system

HostGJ 9404
Spectral typeM2V
Effective temperature3811 K
Radius0.626 R☉
Mass0.620 M☉
Distance23.9 pc / 77.9 ly
DiscoveryRadial Velocity, 2023