Image spcefications:
- Exposure: 16 hours HaO3LRGB = 360:240:210:60:60:40
- Camera: SBIG ST-8300M, Filters: Baader LRGB, Astrodon 5 nm H-alpha, Astrodon 3nm O3
- Telescope: TEC 140 mm with field flattener focal distance 980mm
- Mount: Losmandy G11
- Guiding: SBIG Off Axisguider, Starlight Xpress Lodestar autoguider and PHD
- Location: O3LRGB, Wateren, Netherlands
- Location: Ha: Overveen, Netherlands
- Date: O3LRGB: 6, 7 and 8 October 2018
- Date: Ha: 10 October 2018
Image acquisition with ImagesPlus 6.0 Camera Control:
- 18 H-alpha of 20 min, binned 1x1
- 12 O3 of 20 min, binned 1x1
- 14 Luminance of 15 min, binned 1x1
- 6 Red, 6 Green and 4 Blue of 10 min, binned 1x1
- 20 Flat fields for each filter with flatfield panel
- 20 Dark frames of 20, 15 and 10 min
- 50 Bias frames
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