Scale |
Measure |
(1 cycle = 11 years) |
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|---|---|---|---|---|
|
Aurora has been seen as low as Florida and southern Texas (typically 40° geomagnetic lat.). |
(4 days per cycle) |
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|
Aurora has been seen as low as Alabama and northern California (typically 45° geomagnetic lat.). |
(60 days per cycle) |
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|
Aurora has been seen as low as Illinois and Oregon (typically 50° geomagnetic lat.). |
(130 days per cycle) |
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|
Aurora has been seen as low as New York and Idaho (typically 55° geomagnetic lat.). |
(360 days per cycle) |
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|
Aurora is commonly visible at high latitudes (northern Michigan and Maine). |
(900 days per cycle) |
Latitude |
Latitude |
Latitude |
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