M82 - Cigar galaxy

My last work on M82. I have a lot of difficulties with the PHD2 guiding. I think it's because M82 is closed to North. around 4,5 hours of captures I will continue to capture it this night with L-enhance Optholong filter.   Skywatcher 150/750 PDS EQ5 Bresser Onstep Kit V4 terrans industry Focuser Gemini Camera Svbony SV750C Guiding camera :Orion SSAG SV165 3 sessions Bortle 6 Exposure : 420s to 480s Gain: 280 to 340 Filters: CLS and L-enhance optholong