H Scorpii (H Sco) is a single[11] star in the southern constellation Scorpius.

[2] The star is located at a distance of approximately 343 light-years from the Sun based on parallax measurements, but is drifting closer with a radial velocity of −2 km/s.

[4] After exhausting the supply of hydrogen at its core, this star cooled and expanded off the main sequence.

[3] The star is about 2.2[8] billion years old with only a mild level of magnetic activity, and is spinning with a projected rotational velocity of 3.1 km/s.

[9] It is radiating 4–600 times the Sun's luminosity from its enlarged photosphere at an effective temperature of 3,875 K.[8]