Tau1 Gruis is a G-type main-sequence star of spectral type G0 V. It is estimated that the star has about 1.28 times the mass of the Sun, 1.71 times the Sun's radius, and about 3.6 times the luminosity.
Tau1 Gruis is a G-type main-sequence star with spectral type G0 V. It is estimated to have a mass of around 1.28 solar masses, a radius of approximately 1.71 solar radii, and luminosity roughly 3.6 times that of the Sun.