NGC 6946 and NGC 6939


  Technical Details
Telescope: Pentax apo SDHF 75 f/6.7
Mount: Takahashi EM10 german equatorial mount
Camera: SBIG ST8E ABG + SBIG CFW8 (standard RGB filter set)
Exposure: L:R:G:B = 80:20:20:40 min
Location: Piano Battaglia, Madonie Mountains (Palermo - Sicilia), Italia
Date: July 29, 2006
Software: Maxim DL 4.5, Photoshop CS, PixInsight SE 1.0 beta 3
  Image acquired in collaboration with Gianni Tumino, image processing by Enzo Santin