Geocorona

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The Geocorona refers to an extention of the outermost region of the Earth's atmosphere. It consists of far-ultraviolet light (Lyman-alpha) from the sun that is reflected off, or rather absorbed and re-emitted by, the neutral hydrogen in the exosphere. It extends to at least 15.5 Earth radii. The geocorona has been studied from space, by for example the Astrid satellites and the Galileo spacecraft, using its ultraviolet spectrometer (UVS) during an Earth flyby.

[edit] See also

• Corona
• Geomagnetic storm

[edit] External link

• Geocorona at Southwest Research Institute

Earth's atmosphere

Troposphere | Stratosphere | Mesosphere | Thermosphere | Exosphere

Tropopause | Stratopause | Mesopause | Thermopause / Exobase

Ozone layer | Turbopause | Ionosphere

This climatology/meteorology-related article is a stub. You can help Wikipedia by expanding it.

Retrieved from "http://en.wikipedia.org../../../g/e/o/Geocorona.html"

Categories: Atmosphere | Atmospheric science stubs

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• This page was last modified 23:20, 10 February 2007 by Wikipedia user D-rew. Based on work by Wikipedia user(s) Kricke.
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