Rare nimbus of the Sun Seen within Calcutta

A rare fact was marked in Calcutta on Monday 5th July 2010, called the 22 degree round nimbus of the sun. This is seen as a red & blue ring nearby the sun and is caused by the deflection from side to side ice crystals from cirrus smoke. The cirrus smokes is formed at a height of between 5 and 10 km from the surface of the earth and are caused when water vapour freezes, making the hexagonal shaped ice particles.

The halo phenomenon was seen between 10:30 and 11:30 am without any forecast, as this is amazing that is not possible to predict, according to Debiprosad Duari, the research and academic director of MP Birla Planetarium. The last occurrence of the 22 degree halo was in September 2008 and viewed in Siliguri.

This rare presentation of the 22 degree circular halo of the sun keyed up all who saw it and one amateur astronomer, operational as a railroad employee, called up his family and 10 year old son to go outside and have a look at how beautiful it was.