M 51 - Whirlpool Galaxy Visual Magnitude: +7.92; Apparent Size: 13.7 x 11.7 arcminutes Scope: Celestron CPC 1100 11” Schmidt-Cassagrain with a 0.67x Focal Reducer and mounted on a wedge Camera: ZWO ASI294MC Pro with no filter Guiding: Orion 50 mm guide scope and StarShoot Autoguider camera using PHD2 software Date: May 04, 2021 Frames: 45 x 60 second images at Low (0 dB) gain Stacked and Processed in PixInsight using flats and darks Personal Appeal: love the colour, well-defined spiral arms and interaction of two galaxies