In article ,
"Gavino" wrote:

"oriel36" wrote in message
...
http://www.timeanddate.com/worldcloc...omy.html?n=468

... cause the Sun to set tomorrow at the South Pole and rise at the North.

Actually, because of atmospheric refraction, the Sun rises at the North Pole a
few days before the equinox, and similarly sets at the South Pole a few days
after, being fully visible at both poles on the day of the equinox.

Also because its upper limb rises earlier, and sets later, than its
geometric centre. Both effects are most pronounced at high latitudes.

--
Odysseus