Click on image for large version
Subject
NGC 7023
Date
19th August 2004
Telescope or Lens
TEC APO 140
Mount
G11
Camera
ST2000XM
Filters
TT LRGB and Hutech LPR
Total Exposures L 180 min R 120 min G 120 min B 120 min
Sub exposure
18 x 10 min
8 x 15 min
8 x 15 min
8 x 15 min
Binning
Luminance 1 x 1 RGB 1 x 1
Field of view and resolution
Approx 36 x 25 Arcminute cropped. 1.56 Arcsec / Pixel
Comments  
Reflection nebula, NGC 7023, the Iris.