Tau Piscis Australis
Tau Piscis Australis was a single star system in the Alpha Quadrant. (ENT: "Cold Front"; PIC: "Disengage")
Stellar cartography
The Tau Piscis Australis system was visible from Earth in the constellation Piscis Austrinus. It was approximately 59.6 light years from Sol.
In 2151, this system's position was labeled on an United Earth star chart which was displayed in Daniels' quarters aboard the Enterprise. (ENT: "Cold Front")
In 3191, this system's location was labeled in a star chart. (DIS: "Red Directive")
This star system was only mentioned in writing.
The location of this star system was seen on the bridge of the SS Eleos XII on what appears to be an updated chart from Star Trek: Star Charts. Dave Blass published pictures of the set on his website.
Information on this system was derived from the episodes and films, the reference works Star Trek: Star Charts and Stellar Cartography: The Starfleet Reference Library, and real-world sources. The reference works were used extensively in the creation of star charts seen in Star Trek: Discovery, Star Trek: Picard, Star Trek: Strange New Worlds, Star Trek: Prodigy, and Star Trek: Lower Decks. The real-world information added to the article was current as of 2025.