Bengaluru to witness Zero Shadow Day today: Here's all you need to know about this unique celestial event

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Also read: What is zero shadow day? Unique celestial event set to grace Bengaluru on August 18 During a Zero Shadow Day, the sun is positioned directly overhead, resulting in the absence of shadows on the earth's surface. This occurrence causes the sun to reach its zenith in the sky, leading to a significant reduction in the length of shadows, rendering them practically invisible.

Also read: Kolkata to witness ‘Zero shadow moment’; Here's what is it? Why it happens? When the sun occupies the zenith position, it does not cast a shadow on any object according to the Astronomical Society of India (ASI). For individuals residing between +23.5 and -23.5 degrees latitude, the sun's declination aligns with their latitude twice a year—once during Uttarayan (Northern Solstice) and once during Dakshinayan (Southern Solstice).

On these specific days, precisely at noon, the sun appears directly overhead and fails to cast shadows on objects situated on the ground. Similarly, Hyderabad also witnessed Zero Shadow Day earlier on August 3 at 12:23 pm, during which the sun was positioned directly overhead, causing the shadows of vertical objects to vanish temporarily.