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.
Latest news
Monday, 24 May 2021 - 13:57 UTC
M flares, G2 geomagnetic storm watch
Thursday, 22 April 2021 - 17:23 UTC
C3 solar flare with earth-directed CME
Tuesday, 20 April 2021 - 18:26 UTC
M1.1 solar flare
Latest forum messages
Sunspots Hemispheric Assymetry 4What kind of object is being monitored? Who can tell? 6i will talk about sunspot 2824 63Stereo B (Behind) 3Umm... I think Sunspot 2826 became a β- γ sunspot... 10
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Space weather facts
| Last X-flare | 2017/09/10 | X8.2 |
| Last M-flare | 2021/05/23 | M1.2 |
| Last geomagnetic storm | 2021/05/26 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 135 days |
| 2021 | 47 days (31%) |
| Last spotless day | 2021/05/06 |