noun
azimuth
Technical term used in astronomy, navigation, surveying, and related fields. Refers to the horizontal angle measured clockwise from a reference direction (usually north).
天体の方位角を測定する。
Measure the azimuth of a celestial body.
方位角は北を基準に時計回りで表す。
Azimuth is expressed clockwise from north.
方向 is a general term for direction, while 方位角 is a precise angular measurement.
Compound of 方位 (direction, bearing) and 角 (angle). The term is a direct calque from Western scientific vocabulary.