Comment by foxyv
1 day ago
A nautical mile is 1852 meters
1 degree of latitude is 60 nautical miles
1 millionth of a degree is 0.1 meters
So they lose about 2.4 meters of accuracy per day or about 0.9km per year. Which is pretty good for nautical navigation purposes.
But for that to be useful you also need to measure the angle between the sun and gravity accurate to a millionth of a degree...
Is such a thing possible?