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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1Kp2 | 2B1 Kp4 | 3Kp4 | 4Kp3 | 5Kp3- | 6Kp3+ | 7Kp5- |
8Kp3 | 9Kp2 | 10B5.7 Kp1 | 11Kp1 | 12Kp3- | 13Kp4+ | 14Kp2 |
15Kp3- | 16Kp4 | 17Kp2+ | 18B1.3 Kp2 | 19B1.7 Kp4 | 20B1.1 Kp4+ | 21Kp4+ |
22B5.4 Kp4 | 23B3.3 Kp4- | 24B2.6 Kp4+ | 25B4.6 Kp4 | 26B9.5 Kp3 | 27C2.7 Kp2- | 28C3.9 Kp3- |
Latest news
Saturday, 4 January 2025
Sunspot region 3947, X-class solar flares
Monday, 30 December 2024
Two earth-directed coronal mass ejections
Sunday, 29 December 2024
Strong G3 geoamagnetic storm watch issued
Latest forum messages
correcting common misconceptions about space weather 26AR13939 2025/01/04 CME 4806/01/2025 M 4.87 flare with a faint CME 2sun goes blank 102AR 3947 160
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Space weather facts
| Last X-flare | 2025/01/04 | X1.85 |
| Last M-flare | 2025/01/06 | M4.9 |
| Last geomagnetic storm | 2025/01/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2024 | 154.5 +2 |
| January 2025 | 175.2 +20.7 |
| Last 30 days | 150.7 +26.1 |