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2
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A corona (Latin, 'crown') is an aura of plasma that surrounds the sun and other stars. The Sun's corona extends millions of kilometres into space
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3
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a nuclear reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy.
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a brief eruption of intense high-energy radiation from the sun's surface, associated with sunspots and causing electromagnetic disturbances on the earth, as with radio frequency communications and power line transmissions.
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a reddish gaseous layer immediately above the photosphere of the sun or another star. Together with the corona, it constitutes the star's outer atmosphere.
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The Sun's radiative zone is the section of the solar interior between the innermost core and the outer convective zone.
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a stream of incandescent gas projecting above the sun's chromosphere
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8
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the luminous envelope of a star from which its light and heat radiate.
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10
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A region of turbulent plasma between a star's core and its visible photosphere at the surface, through which energy is transferred by convection. In the convection zone,
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11
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solar wind definition. A stream of particles (mostly protons) emitted by the sun and permeating the solar system. Note: Particularly strong bursts of particles can penetrate the upper atmosphere and disrupt radio communications on Earth.
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14
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The table of elements at left was constructed from analysis of the solar spectrum, which comes from the photosphere and chromosphere of the Sun.
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1
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The Van Allen radiation belt is a torus of energetic charged particles (i.e. a plasma) around Earth, trapped by Earth's magnetic field. The Van Allen belts are closely related to the polar aurora where particles strike the upper atmosphere and fluore
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9
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the quality of being hot; high temperature.
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12
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the natural agent that stimulates sight and makes things visible.
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13
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power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines.
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15
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a natural electrical phenomenon characterized by the appearance of streamers of reddish or greenish light in the sky, usually near the northern or southern magnetic pole.
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16
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the central or most important part of something.
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17
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a spot or patch appearing from time to time on the sun's surface, appearing dark by contrast with its surroundings.
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