Equipment:
- Skywatcher 130-PDS with 0.9x CC
- NEQ-6 mount with belt mod
- ZWO ASI294mm pro cooled to 0 C with ZWO 7nm narrowband filters
- Guided by a Startravel 80 with ZWO ASI120MC-S
Software:
- Image acquisition with AstroPhotographyTools
- Guiding with PHD2
- Stacked with sirilic
- Processed entirely in Siril
Subs:
- 31 x 60 s L
- 10 x 180 s R
- 10 x 180 s G
- 12 x 60 s B
- TOTAL: just 63 mins integration on 26th May 2026 in suburban location (Bortle 5-6 ish) with bright old waxing gibbous moon
Processing:
- Stacked in sirilic using winsorised sigma clipping
- 6 library darks
- flats and dark flats for each filter
- Siril:
- LRGB composition
- Crop and colour balance
- Denoise and histogram stretching
- Star removal
- More stretching and denoising during recombination
by sagramore