Triangulum Australe (The Southern Triangle)

Bright small southern triangle near the Milky Way's southern reaches.

Core Principles & Analysis

• Keyser and de Houtman charted it in the 1590s as the southern counterpart of the ancient Triangle.
• Its three stars are all of the second magnitude — a rarity for so small a constellation.
• Atria, its brightest star, is an orange giant shining at the triangle's southern apex.

Specifications & Metrics

• BRIGHTEST STAR: Atria (α TrA)
• HEMISPHERE: Southern
• BEST VIEWED: June