Distance from Earth: 5.6 parsecs (18.2 light years)
The radial velocity (Doppler) method detects the slight wobble a planet induces in its host star as both bodies orbit their common center of mass. By measuring tiny shifts in the star's spectral lines, astronomers can infer the planet's minimum mass and orbital period. This was the first technique to successfully detect exoplanets around Sun-like stars.
Radius
Unknown
Mass
3.88 M⊕
2.32E25 kg
Orbital Period
53.65 days
0.147 years
Eq. Temperature
216 K
-57°C
Orbital Semi-major Axis
0.1960 AU
Density
Unknown
3.88x Earth
0.147x Earth
0.750x Earth
Star Temperature
3,342 K
Star Radius
0.36 R☉
Star Mass
0.35 M☉
Planets in System
2
Stars in System
1
216 K is within the range where liquid water could exist.
Receives 0.40x Earth's insolation, within the habitable zone.
This planet orbits within the estimated habitable zone of its star.
Habitability assessments are rough estimates based on limited available data. True habitability depends on many additional factors including atmospheric composition, magnetic field presence, tidal locking, and stellar activity. These assessments should not be considered definitive.
Eccentricity
0.0000
Insolation Flux
0.40 S⊕
Earth flux = 1.0