NGC 5457 (M101) and NGC 5474

Date: 2009/03/17 Place: Ricany, mhv~4.5 Lens: SV80S (80/480mm) + TV0.8x Exposition: Atik 314L, CLS,R,G,B (Astronomic) and Ha 7nm Baader filters - L:Ha:R:G:B=84:32:32:32:32min Mount: Losmandy G8, Orion Starshoot Guider on AT1010 Image processing: