Wednesday, November 23, 2016
Filaments of the Veil Nebula, Part II
This is a new version of the Filaments of Veil photo. Composition is much better now, I think. I added one more panel to the mosaic image and now I have a vertical composition. It's somehow more dynamic and complexity of gas filaments stands out well.
My latest image is a composition of exposures from several nights, months and years. Couple of weeks ago, when we had some clear night last time, I took couple of shots from Veil Nebula. This time my purpose was to show some rarely imaged details and structures in this complex ball of expanding gas, leftovers from a massive explosion, the supernova.
I combined this new material to my older images of the area. Total exposure time for this five panel mosaic is around 37 h.
Filaments of the Veil Nebula
Please, click for a full size image
Colors are from the ionized elements, Hydrogen, Sulphur and Oxygen.
S-II = Red, H-alpha = Green and O-III = Blue.
S-II = Red, H-alpha = Green and O-III = Blue.
Technical details
Processing work flow
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 21 iterations, added at 25% weight
Color combine in PS CS3
Levels and curves in PS CS3.
Imaging optics
Celestron Edge HD 1100 @ f7 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 x2 and SXV-AOL
Astrodon filter, 5nm H-alpha
Astrodon filter, 3nm O-III
Astrodon filter, 3nm S-II
Exposure times
New material from this Autumn season, total exposure time 15 h
H-alpha, 15 x 1200s = 5h
O-III, 15 x 1200s binned = 5h
S-II, 15 x 1200s binned = 5h
Older material used for this mosaic image
Pickering's Triangle mosaic, https://astroanarchy.blogspot.fi/2015/09/pickerings-triangle-my-first-light-for.html
Witch's Broom Nebula, https://astroanarchy.blogspot.fi/2015/10/a-new-image-witchs-broom-nebula.html
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