Sharpless 2-155
Takahashi FSQ
SBIG STL-11000XM
AstroDon Hydrogen Alpha and RGB filters
Hydrogen Alpha: 21x20 minutes
RGB: 8x10 minutes each color
Hydrogen Alpha in my backyard in Corvallis, Oregon
RGB at ARGO Observatory in central Oregon
August 2008
Click here for a full resolution image
Click here for the 1/2 size hydrogen alpha image