TEHRAN -- One of the members of the academic board of the Geology Faculty in Shahid Beheshti University, said that on August 12 rains of shooting stars would be visible in Iranian sky.

Ahmad Daleki said that there is some 20 rain of shooting stars in each year, one of these bolide rains that would be witnessed is related to the Barsavoshi astronomical feature.

The university professor who is also the head of the Center of Sciences and Astronomy said that the creation of bolide rains, is usually the result of earth's passing a region in the space through which a comet has passed before. The particles remaining from the comet then hits the atmosphere just beyond the earth and burns due to friction and temporary sparkling lines are produced thereafter.

It seems that the reason behind the bolide rain is the Swift Total Comet which was first observed in 1862 and has a frequency of 120 years.

Daleki said that the time of the comet's return was estimated to be the year 1982 but it appeared in 1992 and therefore its frequency was estimated to be 130 years.

It is also predicted that the comet will next be observed in August 14, 2126 and it is probable that it would come very near to earth.