Monthly Archives: August 2017

Calculating Changes in Longitude and Time Along a Parallel of Latitude.

If two ships are both positioned exactly on the Equator but are separated by 900 nautical miles in an east/west direction, then in terms of longitude, they will be 15o apart and in terms of Greenwich Mean Time, they will be … Continue reading

Posted in astro navigation, Astro Navigation Demystified, celestial navigation, navigation | Tagged , , , ,