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plasmasphere




plasmasphere
A donut-shaped region of relatively cool (2,000 K), dense (tens to thousands of particles per cm3) plasma within Earth's magnetosphere that extends out to a distance of about 4 Earth radii (25,000 km) and is bounded by the inner Van Allen belt. The outer limit of the plasmasphere is called the plasmapause.


Related category

   • ATMOSPHERIC PHENOMENA AND STRUCTURES