Hyderabad witnesses rare '22 degree Sun's halo’ phenomenon, here's what it means

The rare optical and atmospheric phenomenon takes place due to the dispersion of light is called ‘22 degree circular halo' as a ring with an apparent radius of approximately 22° around the Sun or Moon. 

New Delhi: Telangana on Wednesday witnessed a rare phenomenon of a rainbow-coloured ring around the sun. People took to social media to report the marvellous event as the ‘halo’ appeared around the sun, just last week this was seen in Bengaluru as well.  The rare optical and atmospheric phenomenon takes place due to the dispersion of light is called ‘22 degree circular halo' as a ring with an apparent radius of approximately 22° around the Sun or Moon. When visible around the Moon, it is called a moon ring or winter halo. The Sun's halo that was seen around parts of Telangana is a 22-degree ring that appears due to the dispersion of light as white light passes through ice crystals found in upper-level cirrus clouds, causing the halo to have colours.