Last week, I spent a night at Pemaquid Point, best known as the home of the iconic lighthouse featured on the Maine state quarter. I believe it’s also a strong candidate for the best spot in Maine to watch the sun rise above the ocean. A spectacular sunrise depends on clouds: just enough to provide a richly textured canvas for the dawn to paint, but not so many that the colors are trapped behind a sullen gray wall. As I eased my way down a shadowy cliff not long after 4 AM, I thought the sky showed potential. But it’s impossible to know how the show will unfold until it actually happens …