瀏覽499個城市
覆蓋城市
499
平均磁緯度
57.5°N
最佳Kp閾值
—
月相
10月15日
10月16日
10月17日
Read an aurora forecast as a decision stack: space weather first, then local sky, darkness, moonlight, horizon and route feasibility.
Understand Kp as a global geomagnetic disturbance index, how it relates to NOAA storm levels, magnetic latitude and common forecast mistakes.
Learn why active aurora can still be invisible when low cloud, moonlight, haze, city glow, blocked horizons or poor transparency win.
