Ara (constellation)

Constellation in the southern celestial hemisphere

Ara (Latin for "the Altar") is a southern constellation between Scorpius, Telescopium, Triangulum Australe, and Norma. Under its Greek name Βωμός, Bōmǒs, it was one of the 48 classical constellations described by the 2nd-century astronomer Ptolemy, and it remains one of the 88 modern constellations designated by the International Astronomical Union. The orange supergiant Beta Arae is the brightest star in Ara, with a near-constant apparent magnitude of 2.85, and is marginally brighter than the blue-white Alpha Arae.

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