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. You can choose a viewing mode to quickly look for days with interesting space weather and pick a day to view the archived data for that day with more detailed space weather data.
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Latest news
Wednesday, 9 October 2024
X1.8 solar flare, severe geomagnetic storm watch
Tuesday, 8 October 2024
Double X-flares, glancing blow possible
Saturday, 5 October 2024
Incoming CME, G3 geomagnetic storm watch
Latest forum messages
Possible CME 31.10.2024 21:20 UTC Peak X2.03 from AR 3878 flare 15Aurora- with positive BZ and negative BY 9AR 3878 148AR 3879 9Ask your obscure/"stupid" space weather questions. 2
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Space weather facts
| Last X-flare | 2024/10/31 | X2.0 |
| Last M-flare | 2024/11/01 | M1.3 |
| Last geomagnetic storm | 2024/10/12 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| September 2024 | 141.4 -74.1 |
| Last 30 days | 158.2 +8.5 |