A rare astronomical phenomenon known as Zero Shadow Day is set to occur over the Holy Kaaba on the day of Eid al-Adha, for the first time in 139 years. Scientists and astronomers around the world are amazed by this celestial event where the sun aligns directly above the Kaaba, causing objects to cast no shadow.

This astronomical event, known as Zero Shadow Day or Shahd (disappearance of shadow), occurs when the sun reaches its zenith directly over the Kaaba’s latitude. The phenomenon happens twice a year as the sun moves between the Tropic of Cancer and the Tropic of Capricorn. However, its occurrence specifically on the day of Eid al-Adha is exceptionally rare.

The last time the Zero Shadow Day coincided with Eid al-Adha was in 1891. According to scientific calculations, if this alignment is missed this year, the next occurrence would not happen until 2054. This makes this year’s event a once-in-a-lifetime opportunity for observers and pilgrims.

The phenomenon is particularly significant because it helps determine the precise direction of the Qibla from any location on Earth. When the sun is directly above the Kaaba, anyone observing the sun from anywhere in the world can accurately locate the direction of the Qibla. Countries within the sunlit hemisphere can simply face the sun, and the direction opposite to the sun’s position points to the direction of the Kaaba.

Saudi media outlets have reported extensively on this upcoming event, highlighting both its scientific significance and its spiritual resonance during the Hajj season. The sun’s alignment over the Kaaba serves as a reminder of the precision in creation and the connection between faith and natural phenomena.