It is required to determine the geographical latitude of the area by observing the height of the luminary at the culmination.

It is required to determine the geographical latitude of the area by observing the height of the luminary at the culmination. Where is it better to choose a luminary for this in order to obtain greater accuracy of the result – closer to the zenith or further from it, and why.

Closer to the zenith; there the error in accounting for refraction is smaller and the image of the star in the tube is calmer.

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