Premise: Alpha Centauri . To the unaided eye , the two main components appear as a single point of light with an apparent visual magnitude of − 0.27 , forming the brightest star in the southern constellation of Centaurus and is the third-brightest star in the night sky , outshone only by Sirius and Canopus .
Hypothesis: Alpha Centauri can be observed from Earth.
Label: ENTAILMENT