Geocorona

Geocorona bụ akụkụ na-egbuke egbuke nkè mpaghara kachasị elu nké ikuku ụwa, exosphere. A na-ahụ ya karịsịa site na ìhè ultraviolet (Lyman-alpha) sitere na Anyanwụ nké na-agbasasị site na hydrogen na-anọpụ iche. Ọ na-agbasa ruo na 15.5 radii nke ụwa na ikekwe ruo ihe dị ka otu narị radii nke Ụwa. A mụọla geocorona site na mbara igwe site na Satellite Astrid na ụgbọ mbara igwe Galileo (n'etiti ndị ọzọ), na-eji ultraviolet spectrometer (UVS) ya n'oge ụwa na-efe efe.

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 Geocorona na Southwest Research Institute E debere  Wayback Machine