Meteor shower

Tonight:

If you snooze you’ll lose Wednesday morning, when a little known but active meteor shower will start 2012 for people stalwart enough to brave the chilly hours before dawn.

The Quadrantids, named for a now-extinct constellation, will be visible for two hours early Wednesday, from about 3 to 5 a.m. local times.

The shower is likely to produce up to 100 falling stars an hour, making for a good show. People across North America who stay up late enough, and who have a clear sky, should get a nice view, says Conrad Jung, an astronomer at Chabot Space and Science Center in Oakland.