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Monday, October 29, 2018
Clouds of Swan
A new photo from last night. Detail shot from the central area of the Cygnus nebula complex.
Clouds of Swan
Please, click for a large image
Image is in mapped colours, from the emission of ionized elements, R=Sulphur, G=Hydrogen and B=Oxygen.
An experimental starless version
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The details of gas formation are standing out better in this starless version.
A two panel mosaic
Please, click for a large image
My older photo of central Cygnus was overlapping with the new image, so I was able to build a two frame panoramic mosaic.
Orientation in Cygnus Nebula complex
Please, click for a large image
The area of two panel mosaic is marked as a white rectangle.
Technical details
Processing workflow
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 33 iterations, added at 50% weight
Color combine in PS CS3
Levels and curves in PS CS3.
Imaging optics
Celestron Edge HD 1100 @ f10 with 0,7 focal reducer for Edge HD 1100 telescope
Mount
10-micron 1000
Cameras and filters
Imaging camera Apogee Alta U16 and Apogee seven slot filter wheel
Guider camera, Lodestar x 2 and SXV-AOL
Astrodon filters,
5nm H-alpha 3nm S-II and 3nm O-III
5nm H-alpha 3nm S-II and 3nm O-III
Exposure times for both panels together
H-alpha, 9 x 1200 s, binned 2x2 = 3 h
O-III, 3 x 1200 s, binned 4x4 = 1 h.
S-II, 3 x 1200 s. binned 4x4 = 1 h
Labels:
Narrowband color images,
nebula
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