A star is observed at its western elongation. If the latitude of place of observation is θ, the declination of star is δ, altitude of star at elongation is α, then the hour angle of star is given by-A-cos H = cos δ . sec θB-cos H = tan θ . cot δC-cos H = tan θ . cot αD-cos H = tan δ . cot θ-B-cos H = tan θ . cot δ

Question

A star is observed at its western elongation. If the latitude of place of observation is &theta;, the declination of star is &delta;, altitude of star at elongation is &alpha;, then the hour angle of star is given by-A-cos H = cos &delta; . sec &theta;B-cos H = tan &theta; . cot &delta;C-cos H = tan &theta; . cot &alpha;D-cos H = tan &delta; . cot &theta;-B-cos H = tan &theta; . cot &delta;

APTITUDE CRACK · Accepted Answer

B cos H = tan &theta; . cot &delta; No answer description is available

UPSC Civil Service Exam Questions - Engineering

A star is observed at its western elongation. If the latitude of place of observation is θ, the declination of star is δ, altitude of star at elongation is α, then the hour angle of star is given by

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UPSC Civil Service Exam Questions - Engineering

A star is observed at its western elongation. If the latitude of place of observation is θ, the declination of star is δ, altitude of star at elongation is α, then the hour angle of star is given by

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