
The difference in latitude between the Hagia Sophia and Atlantis is 41.01° N - 0°N = 41.01° Latitude.
The difference in longitude between the Hagia Sophia and Atlantis is 28.98°E – (-18.14° W) = 47.12° Longitude.
Therefore the angle between the Equator and the line connecting the Hagia Sophia and Atlantis is 41.03°.
The difference in latitude between the Madara Rider and the Hagia Sophia is 43.3°N - 41.01° N = 2.29° Latitude.
The difference in longitude between the Hagia Sophia and the Madara Rider is 28.98°E – 27.15° E = 1.83° Longitude.
Therefore the angle between the Equator and the line connecting the Madara Rider and the Hagia Sophia is 51.37°.

The angle between the line connecting the Madara Rider and the Hagia Sophia, and the line connecting the Hagia Sophia and Atlantis is 41.03° + 51.37° = 92.4°. This is only 2.4° in excess from being perfectly perpendicular, or an error of only 2.67%.

Keep in mind that GPS was not yet available in the early 17th century when the Rosicrucians plotted these 3 locations in their maps. Therefore, allowing a 2.67% error in their plotting will seem considerate. |