thyerje astronomike

thyerje astronomike

The change in direction of travel (bending) of a light ray as it passes obliquely through the atmosphere. As a result of refraction, the observed altitude of a celestial object is greater than its geometric altitude. The amount of refraction depends on the altitude of the object and on atmospheric conditions.

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Settore/Dominio: Astronomia
Categoria: Astronomia (generale)
Company: Caltech
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Settore/Dominio: Aerospazio Categoria: volo spaziale

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