NOAA Solar Calculator

To find the positions of the sun in the sky for any given date and time the common method is to use the NOAA Solar Calculator. It is often alleged that the NOAA Solar Calculator is based on Round Earth Theory and Heliocentricism, and that because it can predict the position of the sun, and that it means that the Round Earth Theory must true.

Firstly, these claims are universally made without demonstration that the calculator is entirely correct in all instances. A source for records of observations, comprehensive or not, is never given.

Secondly, the assumption that the calculator is based on Heliocentricism is seen to fall flat on reading of the details. The calculations are simple equations that are based on the pattern of previous observations and occurrences. By studying the repeating pattern of behavior of astronomical bodies over a period of time it is possible to create an equation that will predict when the next occurrence will occur or how it will behave in the future.

This is how Aristotle predicted astronomical occurrences, this is how the Flat Earth civilization known as the Ancient Babylonians predicted astronomical occurrences, and this is how "Modern" Astronomers predict astronomical occurrences today.

Online Calculator Link
Online Calculator Link: https://www.esrl.noaa.gov/gmd/grad/solcalc/

Excel Worksheet Version
Under the "Calculation Details" link The NOAA has provided an Excel spreadsheet version of their online calculator here:

https://www.esrl.noaa.gov/gmd/grad/solcalc/NOAA_Solar_Calculations_day.xls

Feel free to look at the formula sources in the spreadsheet above and try and find where the Round Earth Theory is expressed or where we see keplerian orbital mechanics. The calculations are simple equations that are based on the ancient method of assessing the pattern of astronomical occurrences to predict future behavior.

Heliocentric Elements
There does appear to be a seemingly Heliocentric element in the worksheet.

See Column O with the title "Sun Rad Vector (AUs)"

The worksheet default is 1.000001018.

Put 0 in that column and see what happens. It doesn't affect the predictions at all. Also try 9.5 AUs. No effect. The same results are seen result whether the calculator is operating under the assumption of 0 Astronomical Units or 9.5 Astronomical Units.

Astronomical Algorithms
The online NOAA Solar Calculator and the associated Excel worksheet version are based on equations from a book:

A PDF of the above book is found here.

The following is found in the glossary:



This is interesting, as we can even delete the AU column entirely from the worksheet, and the worksheet still gave the same results for the sun, even when the year and day is changed to a future date after the column is removed, showing that the element is useless in prediction of the sun's location.

In some areas of the book the author appears to enjoy pretending that he is using Heliocentric theory for his algorithms, and liberally uses heliocentric terms and factoids to give the impression that Astronomical Algorithms is an a masterpiece of Astronomy prediction. Reading closely, however, the author reveals in the text that the algorithms are really just using statistical (pattern-based) methods: