Ara

Ara (altar) is a southern constellation situated between Scorpius and Triangulum Australe. Its name is Latin for "altar". Ara was one of the 48 Greek constellations described by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations defined by the International Astronomical Union (IAU).

Bordering constellations
Corona Australis | Scorpius | Norma | Triangulum Australe | Apus | Pavo | Telescopium

In ancient Greek mythology, Ara was identified as the altar where the gods first made offerings and formed an alliance before defeating the Titans. The nearby Milky Way (The Milky Way is the galaxy that contains our Solar System) represents the smoke rising from the offerings on the altar.

Uranometria : omnium asterismorum continens schemata, nova methodo delineata, aereis laminis expressa (1603)