Pensacola 2026-02 Predictions

SThurston2 (not a flerf)

Map = North pole AE map. Geometry = On a flat Earth the Sun (A), the Observer (B), and the North pole (C), are three points which make a triangle. The capital letters are used for both points and angles. 
The distances will be measured in units of the distance you have to travel due South to change your latitude by 1 degree and will be called degrees.
The Sun's latitude will be the predicted declination at Noon UTC as provided by SunCalc. Good enough for an approximation.
The distance A to C is named b = (90 - the Sun's latitude).
The distance B to C is named a = (90 - the Observer's latitude).
The distance A to B is named c = the distance required to change the elevation of the Sun by 90 degrees. That is the same as 90 degrees of latitude change using the rule 60NM per degree of elevation change and 1 NM = 1 arcminute of latitude change.
Using the known 3 sides of the triangle, use the Law of Cosines (Cos(C) = (a^2 + b^2 - c^2)/2ab) to get the angles.
The UTC time is given by (12 + 24 * (angle C + Mod(360 - Obs Longitude, 360)) / 360).
The heading is (360 - angle B).

The flat Earth predictions are

Feb 23 at 22:00:01 heading 279.2;

Feb 24 at 22:01:01 heading 279.6;

Feb 25 at 22:02:01 heading 280;

Feb 26 at 22:04:00 heading 280.4;

Feb 27 at 22:05:00 heading 280.8