NGC 7822

Mosaic NGC7822 / CED 214


Date: 21.10.2011 to 26.10.2011
Ambient conditions: -1°C, transparency 4/5, seeing 4/5,
Location: Trier, Germany

Equipment:
Telescope: TMB 92 SS f/5.5 with TSFlat2.5
Mount: GM2000QCI
Guiding: Orion Short Tube 80mm with ATIK 16 IC-S
Camera: SXVF-M25C
Filter: IDAS LPS

Acquisition:
Software: MaximDL 5
FOV, Image scale: 107.5 x 159.6 arcmin, 3.18 arcs/pixel
Sub-exposures: 5h 50m (35 x 10min) + 4h 30m (27 x 10min) + 5h 15m (31 x 10min) lights
Calibration frames: 50 x 20s EL flats. Masterbias 

Processing:
MaximDL 5: Calibration, SDMask stacking
CS5: Mosaic construction, Curves and levels adjustments, GradientXterminator

Comments: 
This picture is a horizontal mosaic of three shots. The weather during acquisition of the left
part of the mosaîc was quite bad, so the quality is poorer than the other two parts. In
general the picture is a bit noisy and more signal would have been necessary. This is my first
experience with mosaics.


Download full size image:

Filename: nebulae/mosaic_ngc7822_2011-10-23_full.jpg
Filesize: 17271424 Kb
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