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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September 2019

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G1

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G1

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Kp3

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Kp3

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Kp4

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Kp3+

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Kp2+

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Kp3-

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Kp3+

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Kp2

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Kp2

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Kp2

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Kp3-

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Kp2

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Kp3

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A1.7

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/09/02Kp5 (G1)
Number of spotless days in 2019:189
Current stretch spotless days:19

This day in history*

Solar flares
12011M1.8
21999C9.4
32015C8.8
42001C7.7
52004C7.5
ApG
1199629G1
2200318
3199716G1
4199812
5199911
*since 1994

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