 Grazing lunar occultation

Grazing lunar occultation occurs when a star passes very close to the edge of the Moon as observed from Earth. In this phenomenon, the star appears to disappear and then reappear as it is obscured by the lunar terrain. Because the Moon's surface is uneven, with craters, mountains, and valleys, different observers may see the star occulted for varying lengths of time or may even see it disappear and reappear at different moments based on their specific locations.