Dennis, two of those objects were visible in the 16"with 13mm Nagler and 2x barlow=242x mag, I did not know which was a moon, but could see them quite plainly, I was seeing stars down past 15th mag in my supernova search.
At astrofest a few years ago an astronomer from Space telescope science institute, named Eric Karkoscka(spelling) showed that you could see some moons of Uranus with a medium to large telescope, in fact I think that he used Zac's 20" on the night.
The seeing last night was about 8-10 Trans 7.5-10 Temp 6.5
