M20 Trifid Nebula and M21 Open Cluster in Sagittarius

Image Details

• L = 48 minutes
• Takahashi Sky90
• f4.5 field flattener
• SBIG ST-2000XM w/CFW8A
• Tru-Balance LRGB Filters
• CCDStack
• Photoshop CS
• 05/12/07
• Mead, Colorado