Mark and Mike have got me laughing..

hahaha
In any case, given the short overall exposure times, they are both fantastic images... I'd be stoked to have something even remotely similar...
Let me just get this straight... The AP140 has a 100mm image circle? Are - You - Serious!?
Guess what is at the top of my list of "things I want" right about now? That and a camera housing a KAF-39000 or KAF-50100 sensor.... Granted the KAF-50100 only has a QE of 0.25%, I'd deal with taking 40min exposures if I was getting a 50 megapixel image, with a 61mm diagonal sensor size... The KAF-39000 might be better, same physical size, 39mp and 30% QE... all this being said the KAF-16803 is perhaps the most likely.. and with the same 60% QE as your U16M, should produce similar results..
Oh wow.. that was quite off topic

haha... my bad.. got caught up in dream land for a moment there...
Awesome images, Awesome scopes, Awesome processing...
Awesome!