[bird (Anthony Wesley)]

Ok, I hope you're not sick of these images yet... here's a closeup of Io from the data recorded on August 18. I had seen something on Io when processing some of the colour images in the other thread, and I wanted to come back and do a run focusing in to see how much I could extract.

Here are four images - red, green, blue and a colour composite which might be approximately how it really appears.

The red image shows the expected polar darkening, except for a hint of a bright spot near the south pole (bottom) that shows up as a notch.

The green image looks about as expected, maybe a slight amount of asymmetry in the darkening between north and south poles.

The blue image is the interesting one, it shows a prominent dark spot in the southern hemisphere. I have no idea what this might be, maybe someone can figure out if this is associated with any known geological feature.

Io is about 1.2" in diameter at present.

cheers, Bird