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|
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Instrument |
12.5" RCOS @
~f/9 (2880 mm fl) 0.64 arcsec / pixel. The Zoomify image scale
is 1.28 to 3.07 arcsec / pixel. |
|
Mount |
Paramount ME |
|
Camera |
SBIG STL-11000 w/ internal filter wheel, AstroDon Gen II Filters |
|
Acquisition Data |
10/30/2011 to 12/1/2011 Chino Valley, AZ... with CCDAutoPilot3
& CCDSoft. AOL guided |
|
Exposure |
Lum 600 min. (40
x 15 min. bin 1x1)
RGB 495 min. (11 x 15 min. each, bin 2x2) |
|
Software |
-
CCDSoft, CCDStack,
Photoshop CS and Noel Carboni's actions.
-
For color balancing, the left ends of the R, G and B histograms were
aligned.
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PixFix32 (pre-beta) to
repair column defects.
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CCDStack to calibrate,
register, normalize, data reject, combine the sub exposures and
create the color image.
-
PhotoShop for
on-linear stretching.
-
Noiseware Pro, a PhotoShop plug-in.
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Comment |
North is to the top.
Barnard 3 is located
in the constellation Perseus. Edward Barnard was a pioneering
astrophotographer. Starting in about 1919 he photographed and
cataloged 370 dark nebulae.
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