Transcription of The Structure of the Sun - Homepage | NOAA / NWS Space ...
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The Structure of the Sun - Homepage | NOAA / NWS Space ...
Chapter 2 SOLAR PHYSICS AND TERRESTRIAL EFFECTS 7 Space Environment CenterChapter 2 The Structure of the SunAstrophysicists classify the Sun as a star of average size, temperature, and brightness a typical dwarf star just pastmiddle age. It has a power output of about 1026 watts and is expected to continue producing energy at that rate foranother 5 billion years. The Sun is said to have a diameter of million kilometers, about 109 times the diameter ofEarth, but this is a slightly misleading statement because the Sun has no true surface.
At the same time, cooler material from above descends, and giant convective cells are formed. This convection is widespread throughout the Sun, except in the core and radiative layer where the temperature is too high. The tops of ... within the Sun, dividing the surface of the photosphere into bright granules that expand and fade in several ...
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