Back to Catalog
2019
Discovered
3.4
Earth Masses
401
Temperature (K)
Discovery Information
Discovery MethodRadial Velocity
Discovery Year2,019
Discovery FacilityMultiple Observatories
Orbital Properties
Orbital Period9.1247 days
Semi-Major Axis0.061 AU
Physical Properties
Mass (Jupiter)0.0107 MJ
Mass (Earth)3.4 M⊕
Eq. Temperature401.2 K
Insolation Flux4.45 S⊕
Planetary Extremes
Where GJ 357 c sits on the spectrum of all known exoplanets.
Mass3.4 M⊕
FeatherweightColossus
Temperature401 K
FrozenInferno
Year Length9.1 days
LightningGlacial
Star Distance0.061 AU
ScorchedFrozen exile
Orbit Comparison
Earth: 365.25 days (1 AU)GJ 357 c: 9.1 Earth days (0.061 AU)
Host Star: GJ 357
Spectral TypeM2.5 V
Effective Temperature3,505 K
Mass0.342 M☉
Radius0.337 R☉
Size vs Sun2.97x smaller
Luminosity0.0159 L☉
Luminosity vs Sun62.9x dimmer
Metallicity [Fe/H]-0.12
Distance (pc)9.4418 pc
Distance (ly)30.8 light-years
Star System View
Loading 3D view...
Other Planets in the GJ 357 System
Test Your Knowledge
Related Research
Loading papers...