NGC 2244 : Rosette Nebula in Monoceros
Imaged on 02/17/10
Scope: Takahashi Sky 90
Mount: Losmandy G-11
Camera/Autoguider: SBIG ST-10 XME with CFW10
Exposures: 50 min each of Ha, OIII, and SII (5-min subs) using Astrodon narrowband filters
Site: Backyard in Carlsbad, CA
Temp: 53 degrees, calm, suburban skies.
The open star cluster NGC2244 is surrounded by gaseous material. Using narrowband filters, hydrogen (green) oxygen (blue) and suflur (red) contribute to this colorful image.
These stars are only 4 million years old and their stellar winds are clearing a hole in the nebula's center. |