Ara: A southern constellation that was described by the ancient Greek astronomer Ptolemy and represents an altar used by the gods to defeat the Titans.
Brightest stars: Beta Arae, an orange supergiant, and Alpha Arae, a blue-white main sequence star, are the brightest stars in Ara, followed by Zeta Arae, an orange giant, and Gamma Arae, a blue supergiant.
Exoplanets: Seven star systems in Ara have been found to host planets, including Mu Arae, which has four planets, and Gliese 676, which is a binary star system with four planets.
Milky Way: Ara contains part of the Milky Way and has several open clusters and nebulae, such as NGC 6397, one of the closest globular clusters to the Solar System.
Read about other constellations