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The solar corona, or upper atmosphere, is only visible during a solar eclipse.
The Sun's "corona".
Usually, we cannot see the corona because of the brightness of the photosphere. However, during a total solar eclipse, the corona shines beautifully against the dark sky. During a partial or an annular eclipse, a ring of the photosphere is visible around the Moon and the corona is not visible.
The corona of the Sun can only be seen with the naked eye during a total solar eclipse. However, with a special telescope called a coronagraph, you can view the solar corona at any time.During a solar eclipse, you can see the corona as a bright ring. But compared to the brilliance of the Sun itself, the corona is invisibly dim. That's why you can only see it when the Sun itself is hidden behind the Moon.
The solar corona, and solar prominences.
The corona.
You can see the corona and chromosphere.
It has over 6 layers, one of which is the corona. You can only see the corona during a total solar eclipse.
The corona on the Sun is the plasma aura that surrounds the Sun. It extends millions of kilometers into space and has extremely high temperatures.
It's not as important as it once was. There was a time when the only time scientist could study the sun's corona was during a total eclipse of the sun. With today's modern technology, scientists can study the solar corona by creating a solar eclipse with their telescopes.
The Corona-sphere and the Photosphere
The Corona-sphere and the Photosphere