Crescent Nebula with 8 inch                        Click on photo to return to 'Diffuse Nebulae'                                                    Home              
Crescent Nebula     NGC 6888

Other description: Nebula.
Constellation:  Cygnus
Dreyer description: Faint, very large, very moderately extended, double star attached.
RA: 20h 12m 00.0s  Dec: +38°21'00"  (Epoch 2000)
Rise: 16:48  Transit: 01:35  Set: 10:25
Size:20.0'


Photo Specifications:

      TELESCOPE:  8" Newtonian  F/5
            CAMERA:  'SBIG' ST-8XE & CFW8 color filter wheel
CAMERA TEMP:  Temp. = -16 C
                   DATE:  7/20/07

Filter
Total
Exposure  time
Sub-frame
 Exposure time
Number  of Sub-frames
Binning
Luminance
47 min
mixed
5
1x1
Red
50 min
600 sec
5
1x1
Green
50 min
600 sec
5
1x1
Blue
80 min
960 sec
5
1x1
Other








Processing:    MaxIm; DDP, align, color combine;  PhotoImpact; final touchup