appeared eclipse of the sun

Our country is the earliest observation eclipse one of the countries, has been more than 4,000 years history. With the development of science and technology, people found the Japanese, month, three body position in special phase happen when an astronomical phenomena. As the earth goes round the sun and the moon revolves around the earth's perpetual motion rule, when the moon is transferred to the basic between the sun and the earth becomes a linear, the sun will have on the earth, when a projection of the moon shadow falls on earth. The moon is nearer to the earth closer shadow is larger, the width of the QuanShi belt is bigger also, duration corresponding singhal-zyda].

"Usually, QuanShi belt widths of 150 kilometers, the length of the sweeps across the earth for 1 million kilometers, with QuanShi outside we call it the" junk food '." WangKeMin said, 22nd, the total solar eclipse was visible except in Yangtze river basin, some cities can see most of our cities QuanShi outside, see all the junk food, among them, Beijing's see food time is at 8 when 24 points.

Nowadays, astronomers not only master the total solar eclipse was visible, and reasons of the occurrence of its regularity of his hand, also can do early warning, and for each location prediction accuracy reached second level. WangKeMin said, following the July 22, China appears again after total solar eclipse was visible in time for 2035 on September 2, Beijing exactly on centerline nearby, can in total solar eclipse was visible on the morning 8 30 points to see about 1 points total solar eclipse was visible 20 seconds. And again the next will wait until 2060 April 30, QuanShi happened in that afternoon, at about six o 'clock, duration approximately 2 points 20 seconds.

Five kinds of observational methods eye protection sky brightness nosedived contingency plans should be prepared

A total solar eclipse was visible during the process of ChuKui, mainly includes ShiJi, ShiShen, suggested, FuYuan five times. Among them, the moon ChuKui is closer to the sun, the moon's apparent round face and the first round the sun depending on the face of the moment, representative eclipse cut begin, ShiShen, the moon and the sun center distance center recently moments, at this time, see the sun was part of the largest cover. Solar eclipse, ShiShen namely for the sun is fully obscure, FuYuan, the moon's apparent round face the second and the sun depending on the cut moment round face, that is the place to meet food end.