HD 133683
# HD 133683

HD 133683 is a single star in the southern constellation of Triangulum Australe. It has a yellow-white hue and is dimly visible to the naked eye with an apparent visual magnitude of +5.76. The distance to this star is approximately 3,600 light-years based on parallax, but it is drifting closer with a radial velocity of −14.7 km/s.

This is a massive supergiant star with a stellar classification of F5Ib. It has around 11 times the mass of the Sun and is spinning with a projected rotational velocity of 4.7 km/s. The star has expanded to 79 times the radius of the Sun. It is radiating 5,400 times the luminosity of the Sun from its photosphere at an effective temperature of 5,567 K.

