Glossary term: 方位角
Description: 在水平坐標系中，方位角指的是物體所在的方向（沿地平線的角度）。方位角以度為單位，從正北向正東方向測量。方位角的數值範圍覆蓋完整的圓周，從0度到360度。換句話說，如果在天球上畫一條從天體到地平線並垂直於地平線的假想弧線，方位角會告訴你這條弧線與地平線相交的位置。一個位於正北的天體，其方位角為0度；位於正東的天體，其方位角為90度，依此類推。在一些國家使用的較早的教科書中，方位角的測量方式是從正南開始，向西測量。因此，在這些教科書中的方位角數值會比現代標準的方位角值偏移180度。
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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher The translation of this term and its definition is still awaiting approval
This is an automated transliteration of the simplified Chinese translation of this term
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