Rosette Nebula

Astrophotography

The Rosette Nebula is a large emission nebula and star‑forming region located in the constellation Monoceros, about 5,000‑5,500 light‑years from Earth. It spans roughly 130 light‑years in diameter. At its center lies the young open cluster NGC 2244, whose hot, massive stars emit intense ultraviolet radiation and stellar winds that ionize the surrounding gas, carve out a central cavity, and sculpt the nebula’s structure. The nebula’s total mass is on the order of 10,000 solar masses, and it hosts several thousand young stars, with ongoing star formation in dense molecular clouds.