What are the coordinates in the horizontal coordinate system called? How are they measured?

There are two coordinates in a horizontal coordinate system – altitude and azimuth. Height is measured from the horizon to the luminary and can take a value from 0 ° to 90 °. Azimuth is measured from a point south to a circle of elevation that passes through the star clockwise (from south to west). Azimuth ranges from 0 ° to 360 °.

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