- Source: Tau3 Serpentis
Tau3 Serpentis, Latinized from τ3 Serpentis, is a giant star in the constellation of Serpens. It has an apparent visual magnitude of approximately 6.11, which is bright enough to be dimly visible to the naked eye under favorable viewing conditions. The distance to this star is approximately 358 light years based on parallax measurements, but it is drifting closer with a heliocentric radial velocity of −22 km/s.
The stellar classification of this star is G8III:, which matches a G-type giant star. However, the trailing colon ':' indicates some uncertainty in the classification. It is radiating 50 times the luminosity of the Sun from its photosphere at an effective temperature of 4,983 K.
