The angle measured at the observer’s meridian from the

单项选择题

The angle measured at the observer’s meridian from the elevated pole，clockwise or counterclockwise up to 180°，to the vertical circle of the body is the（）.

A.local hour angle
B.azimuth angle
C.meridian angle
D.longitude

相关考题

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单项选择题 Superior conjunction occurs when（）.

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