NGC 6888 (AKA Crescent Nebula, Type: Bright Nebula, Const: Cygnus, Size: 20'x10')

• <2005Oct01 - HX916 image of NGC 6888 (~f/5.2, Meade LX10 OTA on G11, an H-alpha RGB composite of 420:20:20:20 minutes of exposure (42x10 min H-alpha unbinned, 4x5 min RGBs binned 2x2, Ha from home over multiple nights (see below), color from LBV), Guided with SXV guidehead at 170mm on ST80 guided through MaxIm. Processing: Ha (see below), Photoshop (levels and curves stretch of Ha), MaxIm (200% resize of RGBs, color registration, combine, balance), PaintShop (Luminance adjusted layering).
  
• 2004-July-16 - SXV-H9/HX916 image of NGC 6888 (Meade LX10 OTA at f/4.6 and f/5.25 on G11, 420 minute total exposure [a stack of 42 10 minute images] taken on 4 different nights, STV and MaxIm/SXV-guided guided, no calibration, from Oceanside [transparency 4-8, seeing 4-7]), Processing: MaxIm and AIP (alignment and stacking), Photoshop (levels and curves).
• 2004-July-16 - SXV-H9/HX916 image of NGC 6888 (Meade LX10 OTA at f/4.6 and f/5.25 on G11, 420 minute total exposure [a stack of 42 10 minute images] taken on 4 different nights, STV and MaxIm/SXV-guided guided, no calibration, from Oceanside [transparency 4-8, seeing 4-7]), Processing: MaxIm and AIP (alignment and stacking), Photoshop (levels and curves).
• 2003-Aug-26 - HX916 image of NGC 6888 (~f/4.6, Meade LX10 OTA on G11, an H-alpha RGB composite of 100:15:15:15 minutes of exposure (10x10 min H-alpha unbinned, 3x5 min RGBs binned 2x2, all from Anza), STV guided, dark frames applied only to H-alpha images. Processing: AIP (dark calibration, stacking), MaxIm (contrast stretch of luminance, 200% resize of RGBs), AIP (color registration, color balanced using G2V, then Black Sky), PaintShop (LLRGB layering).
  
• 5/13/02 - HX916 image of NGC 6888 (f/6.3, Meade LX10, 50 minute total exposure [a stack of 10 5 minute images], STV guided, binned 2x2, dark and flat frames applied, Digital Development Processing and gaussian histogram stretch applied in AIP, from Anza (OCA site) [transparency 8, seeing 7, STV tracking 9]).
• 10/18/01 - HX916 image of NGC 6888 (f/6.3, Meade LX10, 10 minute total exposure [a stack of 10 1 minute images], STV guided, binned 2x2, only dark frames applied, Digital Development Processing and gaussian histogram stretch applied in AIP, from LBV).
• 10/28/00 - STV image of NGC 6888 (two coadded images, both at f/3.75, Meade LX10, track and accumulate (8 of 30, 5 of 60 seconds), wide mode, from LBV).
• Digitized Sky Survey image of NGC 6888 for comparison.