Transit of Ganymede over Jupiter

Yesterday, as I was observing double stars in Orion using my Questar 3-1/2, I saw that Jupiter was gaining some nice elevation over the horizon. After a quick glance I noticed that a transit involving the moon Ganymede was about to happen, and I started setting up my ZWO ASI224MC planetary camera. I completed a 75-minute sequence from 10:10 pm to 11:25 pm under superior atmospheric conditions, and my collage ends with the appearance of the Great Red Spot (visible in the last two shots). During this session I experienced excellent seeing conditions (9 in the 10-point scale by Pickering) together with transparent skies (4 in a 5-point scale).

Questar 3-1/2 (89-millimeter) Maksutov-Cassegrain Telescope.
ZWO ASI224MC 1.2 MP Color CMOS Camera.
Questar internal 2x Barlow lens.

6,000 frames for each individual image in the sequence, processed with PIPP, AutoStakkert! and Registax 6.