It is faintly visible to the naked eye as an orange-hued point of light with an apparent magnitude of 5.78.

[2] Gaia DR3 parallax measurements imply a distance of 516 light-years[1] and it is currently receding with a heliocentric radial velocity of 31.8 km/s.

[7] At its current distance, 19 Sex's brightness is diminished by an interstellar extinction of 0.17 magnitudes.

[14] 19 Sex has a stellar classification of K1 III,[4] indicating that it is an evolved K-type giant star that has ceased hydrogen fusion at it core and it has left the main sequence.

[8] It radiates 241 times the luminosity of the Sun[1] from its photosphere at an effective temperature of 4,576 K.[9] 19 Sex is metal deficient with an iron abundance of [Fe/H] = −0.53 or 29.5% of the Sun's[10] and it spins modestly with a projected rotational velocity of 2.5 km/s.