NGC 6992 SUPERNOVA REMNANT IN CYGNUS
-telescope
-camera
-mount
-guiding
-exposure
-software

GSO 10"Newton f4 @f2.9 ASA 0.73 reducer
Atik490EX -10C
Losmandy G11 Gemini system
dihtered off axis guiding Atik 16 IC-S
Ha 4x1200sec 1x1bin S2 3x900sec 2x2bin O3 3x900sec 2x2bin Baader filters
Maxim DL pro, Photoshop CS5
no calibration

Narrowband image,  near full moon, Atik 490EX "first light"