It would also depend on how *long* he counted. As the night goes on, the earth rotates, and certain constellations "rise" and "set". So he'd count more if he did it in the space of one night than if he counted in the space of one hour.

"You need me. You wouldn't be much of a hero without a villain. And you do love being the hero, don't you. The cheering children, the swooning women, you love it so much, it's made you my most reliable accomplice." -- Lex Luthor to Superman, Question Authority, Justice League Unlimited