NGC 6992

NGC 6992 – Veil Nebula


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

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

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

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

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

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