M20 Trifid Nebula and M21 Open Cluster
Scope/Mount: Orion ED80 F7.5, Celestron CI700 Mount
Camera: Nikon D50 DSLR
Guiding: Meade 216xt AutoGuider, through Meade 8" SCT
Exposure: 4 frames, ISO 1600, 8 min each
Software: DCRaw, Iris, PhotoShop
Comment: 05-15-09, M21 toward left