Photos are each about 20 seconds long (that's why people look like ghosts) taken about every minute. You can also see the shadow of the 8" telescope on the wall (with the bright light) and notice that the shadow moves -- that's because there was a nearly full moon rising (as the moon rose, the shadow got lower on the wall). You can also watch the 14" telescope slowly tracking on whatever they were observing (Saturn I believe as it was in the general direction of the moon that night).