how far away is tau ceti

Tau Ceti is about 12 light‑years away from Earth, or roughly 3.7 parsecs.

Quick Scoop: How far away is Tau Ceti?

• Most modern sources put Tau Ceti at about 11.9–12 light‑years from the Solar System.
• In kilometers, that is on the order of 1.1×10141.1\times 10^{14}1.1×1014 km, far beyond anything reachable with current spacecraft.
• It is one of the nearest Sun‑like stars , which is why it shows up often in sci‑fi and exoplanet discussions.

If you travel at the speed of light, it would still take about 12 years to get there; at 10% of light speed, the journey would take about 120 years, not counting acceleration and deceleration.