Forecasters look at the Kp-index, which measures the disturbance in the Earth's magnetic field. Therefore, the time you spend driving away from cities is often more important than the specific hour on your watch.
Checking Tonight's Cloud Cover for Best Aurora Viewing Time
They might appear as soon as the sky is dark, or they might wait hours after the predicted peak. Therefore, the best viewing times are dictated by when these particles are most likely to hit the magnetic field and when the sky is dark enough to see the resulting glow.
The aurora is most visible during the deep hours of night, when the sky is at its darkest and the solar particles interact with our atmosphere without competition from the sun. Location and Light Pollution Geography is a silent partner in any aurora viewing session.
Check Tonight's Cloud Cover for Best Aurora Viewing Times
The lights are caused by charged particles expelled from the sun’s atmosphere colliding with gases in our planet’s magnetic field. Summary of Key Timing Factors While there is no single guaranteed hour, the odds of success increase dramatically during specific conditions.
More About What time for aurora borealis tonight
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