The plane of the dip circle is set in the geometric meridian

Last updated: 6/5/2023

The plane of the dip circle is set in the geometric meridian and the apparen dip is It is then set in a vertical plan perpendicular to geographic meridian The apparent dip is 8 The declinatio 8 at the place is 1 6 tan tan 8 tan 8 2 6 tan tan A tan A