NGC6992_2011-10-03

Nebulae - NGC 6992

R.A.: 20h 45m 38.0s
Dec.: +30° 42' 30"
Mag.: 7.0

The Veil Nebula, is part of the Cygnus Loop W7radio source 8, or Sharpless 103. Other parts of the loop include the 'Eastern Veil', the 'Western Veil' or 'Witch's Broom Nebula', and Pickering's Triangular Wisp. It is a large, relatively faint supermova remnant in the constellation Cygnus. The brighter segments of the nebula are listed in the New General Catalog under the designations NGC 6960, 6979, 6992, and 6995. The easiest segment to find is 6960, which runs through the naked eye star 52 Cygni. NGC 6979 - the central portion of the Veil Complex is Pickering's Wedge, or Pickering's Triangular Wisp.

© Wikipedia

NGC 6992 – Veil Nebula

Date:
27.09.2011 and 03.10.2011
Ambient conditions: 10°C, transparency 5/5, seeing 4/5
Location: Trier, Germany

Equipment:
Optics: Deltagraph f/3.3
Mount: GM2000QCI
Guiding: TMB 92 SS and Atik16CS
Camera: SXVF - M25C
Filter: IDAS LPS

Acquisition:
Software: MaximDL5
FOV, Image scale: 62.5 x 54.8 arcmin, 1.62 arcs/pixel
Sub-exposures: 5h 25min (29 x 10min),
Calibration frames: 50x10s EL-Flats and Masterbias

Processing:
MaximDL 5: Calibration, SDMask stacking, split L R G B channels
CS5: Curves and levels adjustments on single channels, merge of LRGB image, noise reduction with Carbonis Actions

Comments:
The processing technique with the synthetical luminance permitted much better control of background noise and color.

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Filename: nebulae/NGC6992_2011-10-03_full.png
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