✨ Have you ever seen the Moon form an X or a V? ✨

“Spot the Moon’s hidden X and V—visible only for a few hours each month!”

Learn how the Lunar X & V appear on the Moon’s surface and when you can catch this rare celestial show! Perfect for amateur astronomers and sky lovers.

The Moon has captivated humanity for millennia, but few know about two of its most intriguing optical phenomena: the Lunar X and Lunar V. These temporary patterns appear along the moon’s terminator—the line dividing lunar day and night—and reveal themselves as striking letters formed by sunlight casting shadows across the lunar surface. While they may look like cryptic symbols, they are entirely natural illusions caused by the interplay of light and topography.

Kannan A in Singapore wrote on April 19, 2021: “Upon a close look at the moon tonight, I realized that the Lunar X and Lunar V were clearly visible. These are transient lunar features visible on the lunar surface for about 4 hours once a month. They are most striking when they are visible on the shadow side of the terminator. But they will remain visible against the lunar surface even after the terminator has moved because they are brighter than the surrounding area.