Object: NGC6888 - Diffuse Nebula in Cygnus - The Crescent Nebula Date: August 18, 2001 - 23:45 UT Scope: Vixen R200SS 8 inch f/4 Newtonian at direct focus Camera: SBIG ST237 Ccd camera with Wratten 23A filter Detail: Integration time: 8 x 240 sec. (32 min.) - Binning 1x1 Images acquired with CCDOPS for Windows 4.10 Further processing performed with Picture Window Pro 3.0 Guided with Meade 201XT at the focus of a Meade 2045D SCT Notes: Seeing 7/10. Optics slightly miscollimated