A special cover was released to commemorate the occasion of summer solstice on 21st May 2019 at Chennai.
The summer solstice occurs when the earth's tilt towards the sun is at a maximum. Therefore, on the day of the summer solstice, the day time will be longest in the northern hemisphere. The summer solstice occurs when the sun is directly over the Tropic of cancer, which is located at 23.5° latitude North.
Cover Code: TN-19/2019
Courtesy: Suresh Rao, Bengaluru.
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