Empirical Earth · The Sky — Sun, Moon & Stars

Polaris is not nailed in place

The claim

“Polaris never moves — proof of a fixed Earth under a dome.”

What is measured

Polaris sits within ~1° of the spin axis, so its height above the northern horizon equals your latitude, a clean one-to-one no flat disc can fake. It also drifts: a ~1.3° nightly circle, and through precession the pole-star role passes to new stars over ~25,800 years. Near-stationary is what a spinning sphere predicts, not a fixed light on a dome.

Sources

1. Axial precession & the changing pole star. Earth’s axis precesses on a ~25,800-year cycle; Thuban was the pole star ~3000 BCE and Vega will be ~13,700 CE. Polaris sits ~0.7° from the true po link
2. Latitude equals the elevation of the celestial pole. In celestial navigation the observer’s latitude is exactly the altitude of the north celestial pole (Polaris): ~90° at the North Pole, ~0 link
3. Why a flat Earth can’t reproduce Polaris’s angle. With Polaris at a finite height above a flat North Pole, the predicted angle is an arctangent of (height / distance), which never reaches 0° link

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