M57 - Ring Nebula

The Ring Nebula (M57) Reprocessing of old data Date: September 6, 2022 Location: Saint Petersburg Light pollution zone: White 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 LRGB Frame details: R,G,B 300 x 1"; L 600 x 0.3" ISO/Gain: 300 Total integration: 18 minutes