The aurora and solar activity archive

Searching for historical solar and auroral activity data? The archive is filled with data between the year 1996 and yesterday.

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May 2019

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C1.0

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C2.0

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B9.8

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C9.9

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C1.4

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B1.9

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C6.7

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B2.2

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B3.7

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B3.5

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C2.0

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B1.4

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/05/14Kp7 (G3)
Number of spotless days in 2019:74
Last spotless day:2019/05/02

This day in history*

Solar flares
12000M1.1
22013C9.9
32000C8.5
42001C6.7
52013C6.3
ApG
1201513G1
2201712
3200712
4201311
5200211
*since 1994

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