Circinus (The Compasses)

Small southern constellation between the stars of Centaurus.

Core Principles & Analysis

• Lacaille created it around 1752 for the pair of drafting compasses, one of his instrument constellations.
• At 93 square degrees it is the second-smallest constellation after Crux.
• It contains a notable active galaxy seen nearly edge-on through the Milky Way.

Specifications & Metrics

• BRIGHTEST STAR: α Circini
• HEMISPHERE: Southern
• BEST VIEWED: June