|Meaning in English||the Altar|
|Right ascension||17.39 h|
|Visible to latitude||Between 25° and -90°|
237 sq. deg.
|Number of stars with|
apparent magnitude < 3
- Apparent magnitude
|Table of contents|
2 Notable deep sky objects
Ara's brightest star, β Arae, has an apparent magnitude of 2,9. Its γ star is a double star just south of β.
Notable deep sky objects
The northwest corner of Ara is crossed by the Milky Way and contains several open clusters and diffuse nebulae. The brightest of the globular clusters, NGC 6397, is 8,200 light-years from our solar system and may be the closest such cluster.
The altar, usually depicted upside down, but sometimes upright with the smoke drifting into the Milky Way, was identified as that of the centaur Chiron; its original Latin name was Ara Centauri. It was also occasionally called the altar of Dionysus.