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solar prominence |
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solar prominenceArched stream of hot gas projecting from the Sun's surface into the chromosphere or corona. Prominences can be hundreds of thousands of miles long and can be seen with the unaided eye during a total eclipse. They appear to lie along and are supported by loops in the Sun's magnetic field, where they may remain for days to months. solar prominence [′sō·lər ′präm·ə·nəns] (astronomy) Sheets of luminous gas emanating from the sun's surface; they appear dark against the sun's disk but bright against the dark sky, and occur only in regions of horizontal magnetic fields. 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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There's no comparison in grandeur between such pip-squeak arcs and the mighty solar prominences that Bellan is trying to replicate. A solar prominence, too cool to emit X-rays, outlines a cavity in the corona (lower right arrow). Many physicists have believed that when solar prominences -- masses of gas suspended over the sun's surface -- leap into space, the ones stretching out by more than about half the sun's 700,000-mile radius either detach and keep going, or else simply disappear. |
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