it's actually 2 exposures, blended with a lot of waiting in between. ; i went back in and fixed a few butcher marks for the final image...
tim, you forgot to mention the other basic pixelmania photo taking guidelines for getting these kinds of shots, " sleep, it's overated, besides, it's pixelmania, i'll sleep on the plane" except in my case it did not work out so good, my homeward flight got the airline switched, i was booked on southwest, but was bumped onto screaming baby airline, thankfully it's only 2hrs 20 min
Sorry to hear about that Gary, glad that you got the computer back. ; Can you just please be a little more careful next time?