Gamma Sextantis (γ Sex, γ Sextantis) is a triple star system in the constellation Sextans. It is approximately 262 light years from Earth. The combined apparent magnitude of the system is +5.07.
The system is composed of a close binary star, Gamma Sextantis A and B, which is given the stellar classification A1. The two component stars are approximately 0.38 arcseconds apart, or approximately 30 Astronomical Units, and have apparent magnitudes of +5.8 and +6.2. They complete one orbit every 77.6 years. Orbiting the binary star, at a distance of 36 arcseconds, roughly a hundred times farther out, is Gamma Sextantis C, a 12th magnitude companion.