HD 40307 · K2.5 V
HD 40307 c
Discovered by Radial Velocity in 2009
HZ 0%upper limit
—
Earth-2.0 index
—
Earth Similarity Index
0%
Habitable-zone probability
— R⊕
Radius
Planet
Mass1868.513 M⊕upper limit
Bulk density—
Orbital period9.6184 days
Semi-major axis0.07990 au
Eccentricity0.060
Incident flux35.967 S⊕
Equilibrium temperature622.5 K
Maximum angular separation6.18 mas
Composite parameter sources5 · mixedThe archive may select different publications for different parameters; mixed-source is disclosed, not automatically penalised.
Default-solution coverage70%0% median composite-to-default difference over shared parameters.
Host star & system
HostHD 40307
Spectral typeK2.5 V
Effective temperature4956 K
Radius0.717 R☉
Mass0.770 M☉
Distance12.9 pc / 42.2 ly
DiscoveryRadial Velocity, 2009