The Northern winter solstice fell on the 21st this December, which is often the case, only this year it was accompanied by a total lunar eclipse, making for a combination that last occurred in 1638. Not that it was anything particularly spectacular. I’ve seen total lunar eclipses before, but I have to admit that it would have been fun to experience something that was last experienced by people in the 17th century.
I decided that in order to better avoid such blunders in the future, I would sign up for some kind of astronomy mailing list or news letter. I haven’t done it yet, though. In fact, I haven’t even begun searching for one.