Watching presidian (sic. Perseid) meteor shower and noticed an object directly in line with distant stars. Object was was too far to be moving as fast as it was. Watched the object cover a distance with a consistent speed over what could have been hundreds of miles. The object was visible for approximately 1.5 minutes when suddenly vanished, gone. It was definitely not a meteor - we witness several of those and this was definitely not one of them.