Using a Meade 10" LX50 SCT and a Canon XS DSLR camera, I was able to stack 40x3second images of Uranus revealing four of its brightest satellites.  Images Plus software was used to align and stack these individual images.  I live only 40 miles South of Philadelphia, PA with skies experiencing significant light pollution.  I was impressed that these moons are visible being that they are between 14th and 15.5 magnitude.