Fixed bounds of faint southern constellation. Asterism compass as others drawn arbitrarily but key stars are Alpha (near Epsilon), Beta is tripoint, Delta and Eta wing ends. Gamma, faint, happens to be on approx line to Delta.
Columba (constellation) (Wikipedia)Columba is a faint constellation designated in the late sixteenth century, remaining in official use, with its rigid limits set in the 20th century. Its name is Latin for dove. It takes up 1.31% of the southern celestial hemisphere and is just south of Canis Major and Lepus.