Cancer Minor, Latin: lesser crab, was a constellation composed from a stars in Gemini adjacent to Cancer. The constellation was introduced in 1612 (or 1613) by Petrus Plancius.
The 5th magnitude stars constituting Cancer Minor were HIP 36616, and 68, 74, 81 and 85 Geminorum, forming a faint natural arrow-shaped asterism.
It is only found on a few 17th-century Dutch celestial globes and in the atlas of Andreas Cellarius and was no longer used after the 18th century.
- ^ atlascoelestis.com, Felice Stoppa: Le costellazioni di Petrus Plancius