How do we know that the Firmament Trackers model is not the Walter Bislin model?

The Walter Bislin model was released in 2017. It has a visual layer of a Flat Earth model with a data layer of a heliocentric model to derive azimuth and elevation angles but for only the Sun and Moon. It is very limited, the Walter Bislin model does not support stars or planets. This means we cannot learn about the Southern Cross. We encounter more problems when trying to use the model for navigation, as the map is just a green image with no names for countries. It's a really bad attempt by a glober to troll the Flat Earth community, but still good for 2017. This is why Steven Alonzo decided to progress Flat Earth modeling forward by seven years with the release of the Firmament Trackers model in 2024.

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As mentioned earlier the Walter Bislin model is using the heliocentric model to derive azimuth and elevation angles for the Sun and Moon. The Firmament Trackers model uses Equatorial Coordinates of Right Ascension and Declination to derive the azimuth and elevation angles for the observer. This means that we can use observer-centric observations to determine the celestial declination of the Sun ourselves, to know that every year in December it is -23. This is a sky coordinate that we can then input this into the model and see what the prediction is for any location, including Union Glacier Camp. No models are needed to determine this. We can figure out the data layer ourselves using flat earth model to validate the output of the visual layer instead of the data layer being hidden in the Water Bislin model as it's really a globe model designed to troll flat earthers.

To clarify, the Walter Bislin model does not output nor support equatorial coordinates since it's not a quantified model. Again, it is using a heliocentric model to derive azimuth and elevation angles for the Sun and Moon only. Whereas with the Firmament Trackers we can manually input the sky coordinates of any three stars and then preform a 3 star fix, successfully preforming celestial navigation on Flat Earth; something that cannot be done in the Walter Bislin model since it only supports the Sun and Moon. It's not a real astronomical model and cannot be used for much.

It should also help to clarify that this Azimuthal Grid of perspective is only a few dozen lines of code. This grid is not the model. Much in the same way that SkySafari did not copy Stellarium. Every astronomical model uses this grid as it is how the observer-centric perspective works. The only difference is that globe models such as Stellarium do not allow you to zoom out, so it can be confusing the first time you get to see the 3rd person view looking at these grids of perspective. However it's not special and every astronomical model uses them.

Finally, since the Walter Bislin model is a globe model, it cannot support multiple observers like what the Firmament Tracker Flat Earth can do.

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The Firmament Trackers Pro version on Android lets you plot multiple observers, planets, stars, location auto search, torus field, and more. https://play.google.com/store/apps/details?id=io.journalofgeocentriccosmology.flatearthapp&hl=en-US

Purchase the Firmament Trackers iMac Web and Windows Desktop Laptop version https://firmamenttrackers.com/academic-version/ this is a 4th Generation Flat Earth model allowing multiple observers, planets (wandering stars), location auto search features, plotting locations, etc.

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