Civil Engineering - UPSC Civil Service Exam Questions - Discussion


A star is observed at its upper culmination when it is north of zenith. The latitude of the place of observation is 30°N and declination of the star is 50°N. The zenith distance of the star is

[A]. 10°
[B]. 20°
[C]. 40°
[D]. 80°

Answer: Option B


No answer description available for this question.

Anoop Boora said: (May 20, 2018)  
1) At upper culmination,
Zenith Distance = δ-θ = 50-30 =20.

2)At Lower Culmination.
Zenith Distance = 180-( δ+θ).

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