If δ is the declination of the star and φ is the latitude of the obs – McqOptions

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1.	If δ is the declination of the star and φ is the latitude of the observer, then the azimuth of the star at elongation is given by
A.	sin z = sec φ . cos δ
B.	cos z = sec φ . cos δ
C.	tan z = sec φ . cos δ
D.	none of these.
Answer» B. cos z = sec φ . cos δ

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