The summer solstice in the Northern hemisphere marks the longest day and shortest night of the year.The name solstice comes from the Latin "sol" (sun) and sistere (to stand still). It is the moment (happening twice a year) when the Sun's apparent path north or south reverts its direction. Geometrically the summer solstice happens at the moment when the earth axis defines the smallest angle about the plane defined by the earth orbital plane.
I usually record the sun as it sets at the northernmost point. This year I arrived to my favorite viewing point in the Hudson waterfront, at the 69th Street Transfer Station too late...