I attach SH2 171 astrophoto,
Corbera de Llobregat(Barcelona)Spain.
Dates 02-12-2016.Telescope: Astrograph APM LZOS 105 f:4.9
Cámera:SBIG STL 11000
Mount: 10 MICRON GM 2000
Exposures:
Chip temperature -20oC
H alpha 5 nm: 8 x20 min bin1
O-III 3. nm 8x20 min bin1
S-II 5 nm 8x20 min bin1
Hubble Palette S-II red-H-alpha Green-O.III blue
Calibrated:darks-flats-
Programs.
Maxim DL V5:
CCDStack2 +
Photoshop CS6