David,

#578392
James Dawson
Participant

David,

I’ve made a quick animated GIF of the two images in your post (I’ve inverted the black and white in the AAVSO plot). There are lots of “differences”. I suspect some may be non-stellar objects. How accurate is the AAVSO chart, how are these charts constructed, and how old are they; might some also be proper motion of stars? Will be interesting to see what others say.