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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. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| The team has also confirmed that the solar corona "is denser in regions of closed magnetic field lines that trap the flow of the solar wind [than in open regions]," says Mikic. Familiar plasmas are relatively hot, such as in the solar corona (1 000 000 K), fluorescent light bulbs (10 000 K), or the ionosphere around the Earth (1000 K). In another SOHO study, visible-light images of the solar corona depict the sun spewing out billions of tons of gas. |
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