If ‘δ’ is the declination of the star and ‘φ’ is the latitude of the observer then the hour angle of the star at elongation is given by
A. sin H = tan φ . cot δ
B. cos H = tan φ . cot δ
C. tan H = tan φ . cot δ
D. None of these
Answer: Option B
This Question Belongs to Civil Engineering >> Surveying
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