The GATE Grind

GATE 2023 MN – Question 25

Mining Geology, Mine Development and Surveying · Mine Surveying · 1 mark · Multiple choice

In an astronomical survey the pole star is 27° above the horizon. Estimate the station latitude.

  1. 27° N
  2. 63° N
  3. 27° S
  4. 63° S

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Show answer and explanation

Correct answer: (A) 27° N

Explanation

The altitude of the north celestial pole above the horizon equals the observer’s northern latitude. Treating Polaris as the pole marker, the latitude is 27° N, A. The complementary angle 63° is the zenith distance rather than the latitude.

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