Empirical Earth · The Sky — Sun, Moon & Stars

The Aurora — the Magnetic Field, Lit at Both Poles

The claim

“The northern lights are local atmospheric electricity, not solar particles on a global field.”

What is measured

Auroras ring both magnetic poles at once, glow at spacecraft altitude, and brighten on cue after the Sun erupts. That is what a global dipole catching the solar wind predicts, and impossible for a single-centered plane.

What would show this is wrong

a sustained aurora with no southern counterpart, no delay after solar eruptions, and no emission at satellite altitudes, none of which is observed.

Sources

  1. Aurora, explained. NOAA’s Space Weather Prediction Center: aurora is the glow when electrons from space flow down Earth’s magnetic field into oval rings centered on the magnetic poles. NOAA link
  2. Altitude & emission lines. Auroras occur above ~80 km; atomic-oxygen green (557.7 nm) dominates ~100–150 km, red (630 nm) above ~200 km, with ionized-nitrogen blue-violet (427.8 nm) lower. A link
  3. Borealis & australis. NOAA: the same process produces the northern lights (aurora borealis) and southern lights (aurora australis) in opposite hemispheres at once. NOAA Science On a Sphere link
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