- "Sirius is paved with gold
So I've heard it said
By nuts who then go on to say
'See Tau before you're dead.'"
- —Phrase from anti-teleportation chant[src]
The Sirius Tau star system is a star system home to the Sirius Cybernetics Corporation.
A group of Young Conservatives from Sirius B, the second planet in the system, attended Milliways. They appeared to be a party of smartly dressed young dogs who yapped and barked unintelligibly.
Eadrax is a planet in the Sirius Tau system, and is home to the main administrative hub of the Sirius Cybernetics Corporation Complaints Division and the Complaints Division spaceport. Their motto is "Share and Enjoy" which is spelled out with letters three miles high, until it fell through its supporting office block, and into the mud, where, now the top halves are visible, read "Go Stick Your Head in a Pig," in the local language.
The Sirius Tau system, and planets in this system, are mentioned in:
- The book The Restaurant at the End of the Universe.
- The fifth episode of The Hitchhiker's Guide to the Galaxy television series.
- Fit the fifth of the radio series.