On Saturday, July 13, observers with a telescope or clear skies should focus on the moon, just past its first quarter, as it occults the 1st-magnitude star Spica. The moon’s dark side will cause Spica to disappear dramatically, showcasing the moon’s motion and the star’s small angular size. Spica will reappear on the moon’s bright limb, initially overwhelmed by the lunar glare. Binoculars or even the naked eye may suffice to witness this event.