1998

In 1998 I created this GIF animation showing the effects of the earths atmosphere on an image of the moon:

2019

With the progress of technology nowadays this is a more representative video showing the moon during a night of strong atmospheric turbulence, what we astronomers call “bad seeing”:

This is the resulting image I was able to create from the video above after stacking in AutoStakkert, sharpening in Registax and Photoshop and some finishing touches in Lightroom: