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   Home right arrow Educational right arrow Space Weather right arrow What is Space Weather right arrow Glossary of Solar Terrestrial Terms FORECAST SOL: Moderateyellow MAG: Normalgreen ION: Moderateyellow Wednesday, Feb 08 2012 23:26 UT
Space Weather 
Glossary of Solar Terrestrial Terms

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Zenith Angle
The angle at the centre of the Earth between a point vertically above an observer and an object such as the Sun. The solar zenith angle is zero if the Sun is directly overhead.

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