Alpha Piscis Austrini is Fomalhaut, ‘The Fish's Mouth’, a bright blue-ish star in the southern part of the skies (for northern hemisphere residents). It has a visual magnitude of 1.2 and a distance of 25 light years.

The star is one of the signs that Autumn is here, and is found southwest of the Great Square of Pegasus.

Fomalhaut has a number of fairly bright neighbours: binoculars.