Erigone occults Regulus
On the morning of March 20, 2014, an asteroid will pass right in front of the bright star Regulus in the heart of Leo the Lion. Those who can see it will be along a 45-mile wide path that begins off North America's eastern seaboard, crosses land starting at New York City, continues across Lake Ontario, up part of the Ontario-Quebec border, and on to areas northwest of Hudson Bay. Regulus will vanish for up to 14 seconds.
Here's a visibility map made by occultation enthusiast Steve Preston using the program WinOccult. It shows time predictions for the event.
Here are some visibility time predictions in Universal Time.
If you want to see an asteroid occultation, start watching the skies at least a few minutes before it's predicted time. You may need to make sure you're looking in the right place. Or the event may happen earlier than predicted, especially if astronomers don't know much about the asteroid's size and shape. Of course, keep watching for a few minutes if you don't see it when predicted because it could be late too.