File:213f2.png
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Comparison of great magnetic storms observed at Greenwich in October 1847 (top panel) and at Colaba in September 1859 (bottom). The H-component magnetic intensity and time scales are the same in both plots. The peak of the 1847 storm coincided with an aurora observed in bright moonlight in southern England. The similarity of the two time profiles suggests that the 1859 event was similarly affected by auroral currents.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:24, 23 November 2013 | | 450×354 (86 KB) | Hhudson (Talk | contribs) | (Comparison of great magnetic storms observed at Greenwich in October 1847 (top panel) and at Colaba in September 1859 (bottom). The H-component magnetic intensity and time scales are the same in both plots. The peak of the 1847 storm coincided with an aur) |
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