Hello,
After having a look at Jupiter last night (30/31 Aug 2008) I slewed to Uranus just after midnight and grabbed 30 x 15 sec exposures using a TeleVue x4 PowerMate in the Mewlon 180 F12, delivering an effective focal ratio of F48 (8640mm fl).
I also managed to grab an RGB set and have tried to blend the RGB with the Luminance to reveal a hint of colour. The moons were not visible on the RGB frames so they remain B&W in the composite.
The session was marred a little by thin clouds and occasional strong gusts but overall, I had a good time and was quite pleased with the outcome. I have included a screen print from
SkyTools, a very rich observation planning and charting application. Oberon and Ariel were 2 arc sec apart at the time of capture. Oh the things we do for fun!
Cheers
Dennis