Okay, I’ve mentioned this before but I thought I would bring it up again. One thing that mariners and people who live on west coasts will look for at sunset is “the green flash”. We haven’t seen one in quite a while but we did at St. Pierre. It wasn’t really strong but it was there.
Basically, the way I believe that it works is that as you’re staring at the sun… once it’s safe to do so and at the horizon like in the picture above… the moment that the sun disappears your brain plays a visual trick on you. Because your eye has been viewing an orange glow for a period of time, the absence tricks your eye into thinking there is green in its place. Does that make sense. If not, just enjoy the picture of the sunset taken at most 2 or 3 seconds before the sun set.