tau Cet g
Orbiting tau Cet
tau Cet g is an exoplanet orbiting the star tau Cet, discovered in 2017 using the Radial Velocity method.
Minimum Mass (M sin i)
1.75
Earth masses
Orbital Period
20.0
days
Distance
3.6
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
1.75
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Feng et al. 2017
Orbital Period
20.000+0.020−0.010days
Semi-Major Axis
0.1330+0.0010−0.0020au
M sin(i) (Earth masses)
1.75+0.25−0.40
M sin(i) (Jupiter masses)
0.0055+0.0008−0.0013
Eccentricity
0.0600+0.1300−0.0600
Argument of Periastron
395.3+36.1−84.8deg
Radial Velocity Semi-Amplitude
0.49+0.07−0.11m/s
Distance from Earth
3.6 pc (~12 ly)
Spectral Type
Unknown
Temperature
Unknown
Mass (Solar)
0.78 M☉
Radius (Solar)
Unknown
Luminosity
Unknown
Planets in System
3
Stars in System
1
Coordinates (RA, Dec)
26.0093°, -15.9338°
Discovery Method
Radial Velocity
Discovery Year
2017
Source ID: tau Cet g
tau Cet g orbits tau Cet and was reported in 2017 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 1.75 Earth masses (M sin i) and an orbital period of 20 days.
Catalog data places the system at about 3.6 parsecs from Earth and 3 known planets in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open tau Cet