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Solar Corona

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solar corona [′sō·lər kə′rō·nə]
(astronomy)
The upper, rarefied solar atmosphere which becomes visible around the darkened sun during a total solar eclipse. Also known as corona.

Solar Corona 

the outer and most extensive envelope of the sun. During total solar eclipses, the solar corona can be seen up to a distance of several diameters from the sun. In the short-wavelength part of the spectrum (λ < 200 A) and at meter wavelengths, all the radiation of the sun originates in the corona.

REFERENCE

Shklovskii, I. S. Fizika solnechnoi korony, 2nd ed. Moscow, 1962.


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But we recorded neutrons from this flare over a period of six to ten hours, and what that's telling us is that at least some moderate-sized flares continuously produce high-energy neutrons in the solar corona," Feldman said.
Changes in the solar corona during the last cycle The solar corona is readily visible in all its glory during a total solar eclipse.
Seventeen opening papers address eclipse-related issues of solar system physics, including eclipses and planetary transits, mass determination of small solar system bodies with ground-based observation, damping of magnetohydrodynamic waves as a heating mechanism of solar corona, coronal heating and acceleration of the solar wind.
 
 
 
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