Perseus (The Hero)

Northern constellation of the hero who rescued Andromeda, riding the Milky Way beside Cassiopeia.

Core Principles & Analysis

• The Double Cluster, two open clusters side by side in the Milky Way, is its most celebrated sight.
• Algol, the "Demon Star", is the prototype eclipsing binary, fading on a regular three-day cycle as its companion crosses it.
• The Perseid meteor shower radiates from this constellation every August.

Specifications & Metrics

• BRIGHTEST STAR: Mirfak (α Per)
• HEMISPHERE: Northern
• BEST VIEWED: December