Funny, the things you read on a Rivendell Bike Mailing List:
"A total lunar eclipse will occur on the Winter Solstice, December
20/21. It will be the first total lunar eclipse to occur on the day of the
Winter Solstice (in the Northern Hemisphere; Summer in the Southern)
since 1638. See http://en.wikipedia.org/wiki/December_2010_lunar_eclipse"