The alt-azimuth coordinate system, as defined in the text, is useful
A) everywhere on Earth.
B) only in the northern hemisphere.
C) only in wintertime.
D) only in a planetarium, not in the real sky.

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The Answer of The alt-azimuth coordinate system, as defined in the text, is useful
A) everywhere on Earth.
B) only in the northern hemisphere.
C) only in wintertime.
D) only in a planetarium, not in the real sky.

The Alt-Azimuth Coordinate System, as Defined in the Text, Is