It is correct that the latest sunrise & the earliest sunset do not coincide with the winter solstice. In the latitude of Boston, the latest sunrise is 5 January or thereabouts; the earliest sunset, 5 December. There are two reasons for that. The minor one is that the earth's orbit is not quite circular. The major one, I have never understood.

--- Joe Fineman    joe_f@verizon.net

||: "There's a hint of fall in the air." "Don't talk with your mouth full." :||