IC 5146   Cocoon Nebula                  Click on photo to return to 'Diffuse Nebulae'                          Home
 
Cocoon Nebula         IC 5146

Dreyer description: Pretty bright, very large, irregular figure, 9.5th magnitude star in middle.
Magnitude:  7.0
RA: 21h 53m 24.0s  Dec: +47°16'00"  (Epoch 2000)
Rise: 14:50  Transit: 01:11  Set: 11:36
Size:12.0'


Photo Specifications:

     TELESCOPE:  80 mm Celestron APO  F/8
            CAMERA:  'SBIG' ST-8XE & CFW8 color filter wheel
CAMERA TEMP:  Temp. = -20 C
                   DATE: 8/11/08

Filter
Total
Exposure  time
Sub-frame
 Exposure time
Number  of Sub-frames
Binning
Luminance
60 min
300 sec
12
1x1
Red
60 min
300 sec
12
1x1
Green
60 min
300 sec
12
1x1
Blue
88 min
480 sec
11
1x1
Other





Processing:    MaxIm; calibrate,  DeBloom (Ron Wodaski), color combine, CCDstack align,  Photoshop CS2