Visibility III / V
Comet C/2019 Y4 (ATLAS) is disintegrated and preceding fragment is visible in this R-channel image. Fragment is 10" from comet's main optocenter towards PA 285°. Main image is 25x120s frame stack and two other 12x120s image stacks 30 minutes between.
Image 1) R filter 25x120s 2020-04-10 19:07UT
Image 2) R filter 12x120s 2020-04-10 19:07UT
Image 3) R filter 12x120s 2020-04-10 19:35UT
Image 4) Added strongly stretched version of Image 1. Three fragments can be seen, second fragment preceding first most behind fragment of 7" PA260° and third fragment preceding first most behind of 12" PA290°