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

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

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Surveying
Bowditch rule is applied to

None of these
an open traverse for graphical adjustment
determine the effect of local attraction
a closed traverse for adjustment of closing error

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