Dreyer's Nebula (IC 447) is a striking reflection nebula located in the constellation Monoceros, about 3,000 light-years away. It forms one end of the Monoceros R1 star-forming filament, with IC 446 at the opposite end. IC 447 reflects the light of nearby young, hot stars embedded in the surrounding dust, causing its characteristic blue glow.

Nearby, NGC 2245 and NGC 2247, two additional reflection nebulae, are part of this complex region of active star formation. On the right side of the image lies the edge of an extended hydrogen emission region associated with the Cone Nebula and Christmas Tree Cluster, highlighting the dynamic interactions between gas, dust, and young stellar populations in this vibrant stellar nursery.