Geocorona
From Wikipedia, the free encyclopedia
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
[edit] External link
|
Troposphere | Stratosphere | Mesosphere | Thermosphere | Exosphere |
|
Tropopause | Stratopause | Mesopause | Thermopause / Exobase |
 |
This science article is a stub. You can help Wikipedia by expanding it. |
