1.

If α, H, A and δ be the altitude, hour angle, azimuth and declination of a circumpolar star at its elongation, in latitude λ, the following relation holds good$

A. cos H = tan λ/tan δ
B. sin α = sin λ/sin δ
C. sin A = cos δ/cos λ
D. All the above
Answer» E.


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