Manhattanhenge 2007: May 31 and July 11
Neil deGrasse Tyson's office has sent over the dates for this year's Manhattanhenge, the two days each year when the Sun sets in precise alignment with the Manhattan street grid, (which isn't actually set due north.)
On May 31, a Thursday, Manhattanhenge begins at 8:17 p.m.
On July 11, a Wednesday, Manhattanhenge begins at 8:25 p.m.
Tyson, the director of the Hayden Planetarium at the American Museum of Natural History, first wrote about Manhattanhenge in 2002.