I was in westerly, rhode island videotaping the moon, a close up during day time when suddenly i noticed through my camera viewfinder an ufo crossing the screen. once disappeared from my viewfinder i look up and i did not see it again. it was very far away in comparison with the moon. it looked like an orb of light. there was not stray of smoke or any other sign like an airplane. it was moving in a diagonal line from north to south west (from my stand point) i thought it was an ufo. i showed the video to a couple a guys who were at short distance from me and they thought it was a flying source. i kept looking up and continue videotaping the moon in case i can see it again but nothing happened.