1.

The elevation of the star at elongation is obtained by$?

A. sin α = sin φ cosec δ
B. sin α = sin φ sec δ
C. sin α = cos φ sec δ
D. sin α = cos φ cosec δ
Answer» B. sin ≈í¬± = sin ≈ì√ú sec ≈í¬•


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