[bird (Anthony Wesley)]

I'm stacking a lot of frames along the way to making an animation of the Europa/Io occultation from the 12th.

Each frame of the animation is the best 250 out of 1200 frames, and I kept seeing a persistent set of light and dark patterns on Europa in each frame, so in the end I gave in and stacked together all the finished animation frames (24 frames so far) centered just on Europa and here is the result.

I'll do this again when I'm finished all 64 frames of the animation, but I'm reasonably confident that this is real and not imagined... this represents the best 5000 out of 28000 frames...

Europa is 0.9" in diameter, the smallest of the galileans.

cheers, Bird

Edit: ps this is red channel only.