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40-minute image of solar eclipse corona to be recorded
(Xinhua)
Updated: 2009-07-21 22:48

40-minute image of solar eclipse corona to be recorded
Graphics shows five highlights of the total solar eclipse recommended by the astronomers on July 21, 2009.[Xinhua]
The total solar eclipse on Wednesday has been forecast by the CAS to be the longest observable in China between 1814 and 2309. Viewed from the best observation spots, the total eclipse can last more than six minutes.

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"Astronomers from all over the world are heading to China to observe the corona. We will work closely and share each other's statistics and data on solar eclipse observations," said Gan Qunwei, deputy chief of the Purple Mountain Observatory.

Jagdev Singh, of the Bangalore-based Indian Institute of Astrophysics, said he would be studying the corona chromospheric lines and the corona polarization.

The corona is separated from the sun's photosphere by relatively shallow chromosphere. However, scientists have not found the exact mechanism by which the corona is heated. The studies on chrompheric lines and the polarized radiation have helped give clues to the magnetism of the solar atmosphere.

40-minute image of solar eclipse corona to be recorded
Graphics shows the path of total solar eclipse lasting for over six minutes on July 22 in China, according to the Chinese Academy of Sciences Purple Mountain Observatory. [Xinhua]

Singh is accompanied by 30 students from the institute, bringing two tons of observation instruments to the observatory in Jiangsu for the solar eclipse.

 

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