12.5 hours exposure.
15x1200s Ha 1×1 (5hrs)
14x900s OIII 2×2 (3hrs 30mins)
12x1200s SII 1×1 (4hrs)
Darks, flats and bias, -20c.
Optic – SW Evostar ED80 DS-PRO with SW 0.85 reducer.
Mount – HEQ5 PRO Synscan with Rowan Belt Drive mod.
Sensor – Atik 383l+ Mono CCD + Baader 36mm 7nm Ha, 8.5nm OIII and 8nm SII filters.
Guiding – ZWO ASI120MM + Orion 162mm/F3.2 guidescope with PHD2.
Sequence Generator Pro and PixInsight.
With the variable weather this summer this image took 6 weeks to complete from first to last sub. Astrophotography in the UK is nothing if not a patience game.