Messier 109 & Phecda(γ UMa)

Photographer : Yongho Ji
DATE : 2022-05-03~04
Place : Seokmodo(Bortle Class 4)
Telescope : Skywatcher 8" Quattro 200 CF (F/4) & Skywatcher Esprit 120ED
Reducer/Flattener/Coma corrector : TS GPU Coma corrector 1.0x , Skywatcher 0.77x Reducer
Tripod & Mount : SONA 25-25 Harmonic EQ mount
Guide scope/camera : SvBony 50mm F/4, ZWO ASI174mm mini
Camera : ZWO ASI2600mc pro(Gain 100, Offset 50, -20°C), ZWO ASI2600mm pro(Gain 100, Offset 50, -20°C)
Filter : ZWO L 2" filter
Exposure : Total : 7.5 hours

Mono L : 120" x 102
Color RGB : 120" x 122
Dark, Flat, Dark Flat, Bias