An interesting dilemma as per centering or leaving as is. I find centered (I did it in Photoshop), my eye goes to the sun first, then moves outside, whereas at 1/16" off center, right, I see the whole scene first, then my eye goes to the center. I guess it depends on how you view a scene, but like a chapter in a book, I want to digest it as a whole and not in individual sentences.
Just a thought.