http://www.starhopper.at/ngc1491_hubble.htm
Mount 10Micron 2000QCI
Equipment TEC 160 / APM107
Type of camera Moravian G3 11000m, G2 8300m
Exposure time SII 18 x 30min. - Red
Ha 30 x 30min. - Green
OIII 14 x 30min. - Blue
Total: 31h
Focal Length 1120 / 525
Location / Date Biedermannsdorf 31. Okt. 2015, 1. + 2. + 23. Nov. 2015, 3. Dez. 2015
Distance 11.000 Ly.
Constellation Perseus
Orientation North is up
Remarks Data reduction with CCD-Stack and PS