Position angle中文,Position angle的意思,Position angle翻译及用法

2026-10-18 08:02 浏览次数 31

Position angle

英[pəˈziʃən ˈæŋɡl]美[pəˈzɪʃən ˈæŋɡəl]

Position angle, usually abbreviated PA, is a measurement derived from observing visual binary stars. It is defined as the angular offset in degrees of the secondary star to the primary, relative to the north celestial pole.

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