Amplitude of an observed heavenly body

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urn:mrn:iala:dic:1-2-0125

Amplitude (of an observed heavenly body)

The angle subtended at the observer's zenith between two great circles of the celestial sphere perpendicular to the observer's horizon, one of which passes through the observed body and the other through the east and west points of the observer's horizon.




Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

Languages

English

second

International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM

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