tau Boo b
Orbiting tau Boo
tau Boo b is an exoplanet orbiting the star tau Boo, discovered in 1996 using the Radial Velocity method.
Minimum Mass (M sin i)
1373.03
Earth masses
Orbital Period
3.3
days
Distance
15.7
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
1373.03
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Borsa et al. 2015
Orbital Period
3.312+0.000−0.000days
Semi-Major Axis
0.0490+0.0030−0.0030au
M sin(i) (Earth masses)
1373.03+12.71−12.71
M sin(i) (Jupiter masses)
4.3200+0.0400−0.0400
Eccentricity
0.0110+0.0060−0.0060
Epoch of Periastron
2456400.94+0.30−0.30days
Argument of Periastron
113.4+32.2−32.2deg
Radial Velocity Semi-Amplitude
471.73+2.97−2.97m/s
Distance from Earth
15.7 pc (~51 ly)
Spectral Type
Unknown
Temperature
6466 K
Mass (Solar)
1.32 M☉
Radius (Solar)
1.43 R☉
Luminosity
0.51 log L☉
Planets in System
1
Stars in System
2
Coordinates (RA, Dec)
206.8135°, 17.4572°
Discovery Method
Radial Velocity
Discovery Year
1996
Source ID: tau Boo b
tau Boo b orbits tau Boo and was reported in 1996 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 1,373.03 Earth masses (M sin i) and an orbital period of 3.31 days.
Catalog data places the system at about 15.7 parsecs from Earth 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 Boo