USS Antares (NCC-1820)

USS Antares (NCC-1820) was a heavy cruiser — of the Tikopai subclass — on active duty in Starfleet during at least the 23rd century. (,, vol. 1)

Background
The ship was named after the star, aka Alpha Scorpii.

Antares was also a Starfleet International chapter in 1985.