The total solar eclipse will be of longest duration during this century. It will be visible in India, some of the Japanese islands, China and Pacific Ocean. The eclipse begins with the sunrise in the western part of India, travels to eastern part of India, crosses to Myna-mar (Burma), small islands of Japan and China. In India Surat, Indore, Bhopal, Jabalpur, Varanasi and Patna are some of the cities lie close to the central part of the totality. In China duration of the totality will be about 5 minutes. In India altitude of the sun will be about 15 degrees in the eastern part at the time of total eclipse and this period is full of rains due to South West monsoon.
Imaging of the solar corona has the advantages of providing the information over two dimensional region of the solar corona but it may have the small uncertainty of in the data due to variations in the sky transparency. On the other hand spectroscopy provides data only on the small portion of the solar corona but with spectral purity and is possible to account for the variations in the sky transparency. Line profiles can also yield information about the temperature and non-thermal structure of the solar corona.
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