Here is my capture of Comet C/2019 Y4 ATLAS with the tail really starting to show. Captured with the Celestron 9.25” EdgeHD+Hyperstar, ZWO ASI2600mc-pro, and the ASIair Pro. This is a set of 10 x 120 second images stacked, aligned and processed in PixInSight. Some further details:
28 March 2020 ~appx. 0400UTC Image Size: 2.39 x 1.63 deg
Other info from Astrometry.net Center (RA, Dec): (125.871, 68.506) Center (RA, hms): 08h 23m 28.935s Center (Dec, dms): +68° 30' 20.984" Size: 2.39 x 1.63 deg Radius: 1.448 deg Pixel scale: 1.5 arcsec/pixel Orientation: Up is 118 degrees E of N