Telescope: Celestron 9.25"
Schimdt-Cassegrain at f/6.3
Focus: Prime focus
Filter: Celestron LPR
Mount: Vixen GPD with Skysensor2000
Camera: Modified Canon EOS 300D, at
Guiding: 700mm refractor guidescope,
SAC7 camera, autoguided with Guidedog software
Exposure: Total 52 mins (13 x 240s)
Date: 16th January 2005
Processing: RAW file conversion,
Offset and Dark subtraction, flat fielding, registering and stacking done in
IRIS. Curve stretching and colour saturation enhancement by Luminance
Layering in Photoshop CS.
Not as many frames as I would have liked,
but nevertheless quite a deep image, with a mag 20.0 star (ref. USNO B)