Marina Exam Reviewer: In the celestial equator system of coordinates of what is equivalent to the co-latitude of the Earth system of coordinates?

Marina Exam Reviewer

In the celestial equator system of coordinates of what is equivalent to the co-latitude of the Earth system of coordinates? 

A. Declination 
B. Zenith distance 
C. Polar distance 
D. Co-altitude 



Answer: C. Polar distance