Kolkata: In a rare incident, a mysterious rainbow ring - red and blue - around the sun, has been spotted in the skies of Kolkata on Saturday afternoon.
As per reports, the rare phenomenon, known as ‘22 degree circular halo’, was sighted between 12.10pm and 12.40pm in the city when many residents were busy voting in the fifth and penultimate phase of Assembly elections.
Watch the video of the rare phenomenon below-
Video credit: Science & Technology/YouTube
Although the natural optical phenomenon lasted for only a few minutes, it captivated the social media for a while.
A 22 degree circular halo of the Sun or occasionally the Moon occurs when the Sun’s or Moon’s rays get deflected/ refracted through the hexagonal ice crystals present in cirrus clouds, say experts.
The 22 degree halo was last observed in April 2013 in the suburbs of the city.