M81 from Bortle Class 4 skies.
Telescope: Celestron SP-C6
Camera: ZWO ASI 183MM Pro
Mount: Orion Atlas EQ-G, driven by EQMod with APT
Guide: Orion 50mm Guidescope and SSAG
Filters: ZWO LRGB in EFW-8
L: 32x240s G125 & 18x300s G150
R: 15x300s G200 & 15x240s G175
G: 16x300s G200
B: 34x240s G175 & 11x300s G200
Total Integration: 10.4 hrs
20 Darks, 50 flats, 50 bias used.
PixInsight (Blink, WBPP, CosmeticCorrection, LocalNormalization, Drizzle, DBE, PhotometricColorCalibration, SCNR, MultiscaleLinearTransform and ACDNR for background noise reduction while a mask protects the galaxy, create a mask to protect galaxy then apply MultiscaleLinearTransform for noise, ColorSaturation, HDRMultiscaleTransform to attack core, MultiscaleLinearTransform for sharpening, DarkStructureEnhance). Final adjustments to curves/saturation made in Photoshop.
Would love to hear any feedback, thank you!