M57 - Ring Nebula

The Ring Nebula (M57) in artificial colors! Altitude above horizon: 45-40° Apparent diameter: 0°3'48"x0°2'24" Apparent magnitude: 8.8 Telescope: SW 150/750 on EQ5 OnStep mod Camera: SVBONY 305M (IMX 290) Filters: ZWO LR Date: 07.09.2022 Location: Saint Petersburg Light pollution zone: White Software: FireCapture, DeepSkyStacker, Pixinsight, Ps Frame parameters and RGB composition: 1.5k frames captured per filter, 450 frames stacked x 1" ISO/Gain: 300 R: R G: R+L (in a 70/30 ratio) B: L Total exposure: 15 minutes