Zero Shadow Day is a phenomenon that occurs twice a year when the Sun reaches its highest point in the sky. During this time, the Sun is directly overhead at local solar noon. It usually occurs in regions near the equator between the Tropic of Capricorn and the Tropic of Cancer.
The date of this celestial event varies on the latitude and longitude of a particular location. It is an excellent time when you can see neither living creatures nor inanimate objects cast any shadows.
How to witness ‘Zero Shadow Day’
To witness it find an open space directly under the Sun without any obstructions. The phenomenon can be witnessed at noon when the Sun is at its peak.
This event is important for both astronomers and photographers. Astronomers use this day to study the Sun’s movements, whereas photographers capture fascinating pictures. Though it lasts for a split second, the impact can be felt for up to 2 minutes.
Moreover, the time of Zero Shadow Day changes slightly throughout the year, depending on the geographical location. The reason behind this is the sun’s position relative to the Earth changes over time. The date of the event also depends on the length of the day in different parts of the world.
So, never miss out on any chance to experience this fascinating celestial event.