Notes on finding waypoints

The north star Polaris is directly above the North Pole.
As viewed from the Polaris, Earth turns counterclockwise.

Distances are measured in degrees, minutes and seconds.

1 Nautical Mile = 1.8 Kilometers
1 Minute = 1 Nautical Mile
1° of Latitude = 60 Minutes

From the equator are 90° North and 90° to the poles.
From the Prime Meridian in Greenwich, England it's 180° to the East and 180° to the West. The date line at 180° goes through Fiji.

Using a Sextant

A sextant measures the degrees of a celestial object like the sun to the horizon.