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  • noun

Synonyms for declination

a marked loss of strength or effectiveness

Synonyms for declination

a condition inferior to an earlier condition

(astronomy) the angular distance of a celestial body north or to the south of the celestial equator

a polite refusal of an invitation

References in periodicals archive ?
In this category, the global solar radiation models are a function of extraterrestrial solar radiation and also solar declination angle, as:
H0 is the extraterrestrial insulation on horizontal surface where Isc is the solar constants, Ph the latitude, d the solar declination, Ws is the sunset hour angle, N day length (= 2/15 Ws).
Therefore, the length of the day is a function of latitude and solar declination.