● SCIENCE

Aurora Simulator

Kp and Bz make the curtain; cloud and darkness decide whether you can see it. Drag all four — or pick a location, pull the real conditions, and see the current chance of a sighting.

42%

Chance of a sighting

Marginal

Conditions are favourable — the curtain would be visible to the eye.

Kp5Bz (nT)-6Cloud20%

Sky

A visual analogy. Real colours come from oxygen (green/red) and nitrogen (pink) emission; "live conditions" combines NOAA SWPC + Open-Meteo data for the chosen location.