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the sun
Term | Definition |
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nuclear fusion | a nuclear reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy. |
sunspot | a spot or patch appearing from time to time on the sun's surface, appearing dark by contrast with its surroundings |
solar flares | 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. |
prominence | the state of being important or famous |
corona | the rarefied gaseous envelope of the sun and other stars. The sun's corona is normally visible only during a total solar eclipse when it is seen as an irregularly shaped pearly glow surrounding the darkened disk of the moo |
chromosphere | 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 |
photo sphere | the luminous envelope of a star from which its light and heat radiate. |
convection zone | The convection zone of a star is the range of radii in which energy is transported primarily by convection. In the radiation zone, energy is transported by radiation |
radioactive zone | emitting or relating to the emission of ionizing radiation or particles |
radiation convection | the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles that cause ionization |