Also seeing as we suffer fog in some areas we must have clouds above the camera.. It appears graal has a darker blue sky, perhaps graal has less atmosphere as it has less mass than earth, if you equate the tiles to be a square foot each. And look at the amount of tiles in the gmaps dimensions you can see its much smaller than the earth, although I don't know, the map doesn't wrap around, do we don't know if theres supposed to be more to the planet outside of graals gmap.