For 15 minutes around sunset on two days this summer, the sun will set in exact alignment with the cross streets of Manhattan's street grid, making the city's towering buildings function something like a modern-day Stonehenge.
They call it Manhattanhenge.
The first Manhattanhenge opportunity comes this weekend: On Saturday (May 30) at 8:17 p.m. EDT the ball of the sun will be half above the horizon, half below if you look west down a major cross-street (34th Street and 42nd Street are good viewing locations). On Sunday, May 31, the entire solar sphere will be visible just above the horizon at 8:17 p.m. EDT.
Hey if any of you observe this let me know, okay? Daryl?