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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July 2020

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64%

Space weather facts

Last X-flare2017/09/10X8.2
Last M-flare2020/05/29M1.1
Last geomagnetic storm2020/04/20Kp5 (G1)
Spotless days
Last 365 days309 days
2020146 days (77%)
Current stretch4 days

This day in history*

Solar flares
12000M5.7
22005M2.8
32003M2.0
42017M1.3
52014M1.2
ApG
1201242G3
2201724G1
3200524G1
4201915G1
5199815
*since 1994

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