Thanks to Jeff and Grant for the info on this. I've never tried to capture one of these before so I'm sure I didn't use the optimal approach. I recorded 810 frames, and the gif linked below shows frames 450 to 600. Firecapture recorded these capture times for all 810 frames:
Here's the animated gif with an overexposed Uranus and the star at lower left:
[Faster animation added in post #16]
After a few seconds the star blinks out and returns later. The gif starts over when the planet shifts upwards. It would be nice if I could find a way to print times on this. Exposure time was 300 ms with gain of 450 for the ASI224MC camera (Nexstar Evolution 9.25 scope, no Barlow or ADC). With only 3.33 fps, it's not very smooth.
I'd appreciate any advice on what else I might do with this recording to make it scientifically useful. If I can get the exact occultation time, I should be able to work out the length of the chord the star tracked behind Titania.
Edit: From the original AVI, the star blinks out at frame 480 (05:19:33.8 UT) and reappears at frame 581 (05:20:04.1 UT; full brightness at frame 582). So it was gone for 101 frames (480-580), which is 30.3 s.
Edited by KiwiRay, 21 November 2023 - 08:19 PM.