NOAO's gallery of Star Clusters

NOAO's gallery of Star-Forming Nebulae

---

Open star cluster NGC 2266 (1 billion years old) in Gemini

Open star clusters M46 (top left, 300 million years) and M47 (bottom right, 80 million years)

Open star cluster M7 (200 million years) in Scorpio

The Pleiades, M45 (100 million years old)

r Ophiuci

The Rosette Nebula, glowing in the pink light of Ha