reply to post by 2 cents
Unless it was repeating the same patterns in intervals....

Forgive my skepticism about the strobing/choppiness/flipbook effect, but I had to experiment to convince myself.
I shot this video not 20 minutes ago (around 2215 CST) with a JVC GR-D770U 34x Optical Zoom, handheld, with Canis Major aka Sirius centered in the viewfinder. I believe you'll agree the results are consistent with the Caron video.
www.youtube.com...
Edit to add: This was recorded in Night Alive mode, and hand held.