Surveying
The most convenient co-ordinate system for specifying the relative positions of heavenly bodies on the celestial sphere, is

Altitude and azimuth system
Declination and hour angle system
Declination and right ascension system
Declination and altitude system

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Surveying
Transit rule of adjusting the consecutive coordinates of a traverse is used where

linear measurements are more accurate than angular measurements
All of these
linear and angular measurements of the traverse are of equal accuracy
angular measurements are more accurate than linear measurements

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