Flat Earth Celestial Navigation Fundamentals

Flat Earth Celestial Navigation Fundamentals 1 demonstrates how angles to the sun across a level surface are converted into distance using nautical miles (nm). This conversion of angles into distances using sextants and almanacs requires an imaginary centre point of an imaginary sphere at a fixed distance from points on the surface (the globe earth projection's assumed radius). The surface is level but the distance is determined by the angle between two points converging at the centre of an imaginary circular earth. This is also how great circle distances are calculated.

This is the first in a series of videos aimed at showing how and why navigation on flat earth is converted into a globe projection. The takeaway from this vid is simply this: Distances in nautical miles across the level earth are interchangeable with angles. 1 degree of sun declination = 60nm.

Proto is Wrong Forever:

Flat Earth Celestial Navigation Fundamentals 1:

In the 2nd in a series of videos, Navigating Flat Earth, we demonstrate and illustrate how celestial navigation is done across flat earth by measuring declination. Support Phuket Word on Patreon: https://www.patreon.com/phuketword  Understand how angles and distances are calculated when navigating across flat earth by measuring angles using a sextant and how the angles of declination are converted into an imaginary globe, or distances are considered part of a great circle.

The video is in several parts to explain each step, so DO NOT SKIP, even if you already understand celestial navigation, because this video demonstrates how it is actually done across a level surface and how the declination of luminaries caused by perspective is turned into 360-degree circles in a way that you may not have been shown before.

Do not assume that great circles are slices of a globe. On the contrary. They are flat, circular planes.

Correction: At 46:27, the circle's radius should be 3,400nm, not 5,400.

Flat Earth Celestial Navigation 2: