How to watch bright red star Antares disappear behind the moon on May 23

A giant transparent crab in the night sky in captured within a yellow circle. The full moon hangs in the center. Just to its left, a point is labeled "Antares," connecting blue lines tracing points to indicate the constellation shape.

For the third time this year, the bright red star Antares will be occulted or hidden by the moon on Thursday, May 23.  

The first occasion came on Jan. 8, involving a thin waning crescent moon in the morning twilight sky and visible primarily over the western U.S.  Then, on March 5, a last quarter moon covered Antares, again during the early hours of the morning, mainly favoring the southern and southeast U.S.