This crescent-shaped cluster shines in northern Cassiopeia, visible all night long as the stars wheel around the North Celestial Pole.

| Published: October 29, 2026

Collinder463 is a loose open cluster of young stars located in Cassiopeia the Queen. At lower magnifications than that used to image the cluster here, many observers find it looks like a crescent. Credit: Yu-Hang Kuo (Flickr, CC BY-SA 2.0)

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October 28: The Moon hangs with Uranus

The W-shaped constellation Cassiopeia is prominent in the northern sky after sunset as it wheels around the North Celestial Pole, which marked by the North Star, Polaris. Around 8 P.M.…