tau Gem b
Orbiting tau Gem
tau Gem b is an exoplanet orbiting the star tau Gem, discovered in 2013 using the Radial Velocity method.
Minimum Mass (M sin i)
6547.00
Earth masses
Orbital Period
305.5
days
Distance
112.5
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
6547.00
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Mitchell et al. 2013
Orbital Period
305.500+0.100−0.100days
Semi-Major Axis
1.1700au
M sin(i) (Earth masses)
6547.00
M sin(i) (Jupiter masses)
20.6000
Eccentricity
0.0310+0.0090−0.0090
Epoch of Periastron
2453270.70+14.80−14.80days
Argument of Periastron
137.4+0.3−0.3deg
Radial Velocity Semi-Amplitude
350.20m/s
Distance from Earth
112.5 pc (~367 ly)
Spectral Type
K2 III
Temperature
4388 K
Mass (Solar)
2.30 M☉
Radius (Solar)
26.80 R☉
Luminosity
Unknown
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
107.7847°, 30.2450°
Discovery Method
Radial Velocity
Discovery Year
2013
Source ID: tau Gem b
tau Gem b orbits tau Gem and was reported in 2013 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 6,547 Earth masses (M sin i) and an orbital period of 305.5 days.
Catalog data places the system at about 112.5 parsecs from Earth, a host star classified as K2 III, and 1 known planet in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open tau Gem