Here it is with a bit more "lippy" on Peter.
How much data is there here? Chasing galaxies is certainly "courageous" from city skies with the moon about, and small amounts of data.
The much brighter background sky means your overall signal to noise is much much less than from clear dark skies. Altitude of object important too of course.
http://www.youtube.com/watch?v=ik8JT2S-kBE