NGC7023

Mount:HEQ5 pro
Camera:Atik 16HR
Lens:Nikkor 80-200mm ED2.8 @f/5.6
Focal lenght:200mm
Handmade filter wheel
Ha[ 13nm] R/G/B[Astronomik]
Exposure:90minIR 50minR 50minG 60minB
Guiding system:PHD/Meade DSI color/400mm lens
Software:Iris/MaximDL/Photoshop
Olympos observatory
Platamon/Pieria Greece
Date:22-7-2009