The Sky Today on Tuesday, May 20: The Moon at Last Quarter

Last Quarter Moon occurs at 7:59 A.M. EDT. This phase of the Moon offers observers a chance to focus on our satellite’s western limb, including the huge, dark Ocean of Storms that stretches more than 1,600 miles (2,500 km) and is prominent in the lunar southwest.  A much smaller but nonetheless noticeable dark feature southwestContinue reading “The Sky Today on Tuesday, May 20: The Moon at Last Quarter”
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