NGC 2244 - The Rosette Nebula 2014-01-19 Center of the Rosette Nebula, or NGC 2244, in the constellation of Monoceros. The total exposure time is 3 hours and 30 minutes with Astronomik 12 nm narrowband filters (H-alpha, S-II, and O-III). Check out my other photos! ← NGC 2264 - The Cone Nebula in LRGB vdB 141 - The Ghost Nebula →