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Tuesday, September 25, 2012
IC 1340, Part of the Eastern Veil Nebula in Cygnus
RA: 20h56m 45.8s DE:+31 degrees07' 17"
Colors are mixed R=H-a, G=O-III and B=O-III + 5%H-a
An experimental starless version to show the actual nebula better
An animation to show difference between H-alpha and O-III emissions
Hydrogen and the Oxygen are clearly separated
Area of interest is marked as a white rectangle in this older wide field image above.
Processing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Levels, curves and color combine in PS CS3.
Optics, Meade LX200 GPS 12" @ f5
Guiding, SXV-AO, an active optics unit, and Lodestar guide camera
Image Scale, ~0,8 arc-seconds/pixel
16 x 1200s exposures for H-alpha emission = 5h 20min.
12 x 1200s exposures for O-III, emission of ionized oxygen = 4h
IC 1340 in Eastern Veil Nebula. Image shows a starless version of pure ionized Oxygen, exp. time ~5h.
This is a second version of this photograph. It looks like an electric version of the Nike statue!
I made an animation about different components in my image.
In this animation, allthe components in my image of IC 1340 are separated.
Looks odd but it's very useful while processing the image, since operations can be done to single element in image without interfering other image components.
NOTE. There is absolutely zero data lost in this technique due to my processing method.
I'm using a "difference mapping" between images and all the removed components gets placed back byte by byte in final image!