Centaurian adj.

One wonders if the Centaurian inhabitant gives to this yellow star more than a passing thought.

He'd go down in history…as the first peacetime user of directive power for interstellar flight. He'd comb the Centaurian system, and then return home with proof.

If the human race were confronted with a great extraterrestrial foe, a Martian or Centaurian or Betelgeusean invasion.

The Centaurian defense minister had backed him up, pointing out that the worst threats the region had faced in recent years had come from unknown foes.