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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1Kp3+ | 2Kp1 | 3Kp1- | 4A1.57 Kp2- | |||
5Kp5+ | 6Kp3 | 7Kp2+ | 8Kp3- | 9Kp3- | 10Kp3- | 11A1.57 Kp2+ |
12Kp2- | 13Kp2 | 14Kp1+ | 15Kp1+ | 16Kp2 | 17Kp2 | 18A1.57 Kp3- |
19Kp1 | 20Kp2- | 21Kp1+ | 22Kp2+ | 23Kp2- | 24Kp2 | 25Kp2- |
26A1.57 Kp2+ | 27Kp3 | 28Kp2 | 29Kp2- | 30Kp3+ | 31Kp6- | |
Latest news
Sunday, 7 December 2025
M8.1 solar flare with earth-directed CME
Monday, 1 December 2025
X1.9 solar flare, Coronal hole faces Earth
Friday, 14 November 2025
X4.0 solar flare
Latest forum messages
AR4299 M8.1 CME 2025/12/06 303Growth of Cycle 25 976Ask a powergrid operator anything 45Light pillar 11AR4294 / 4296 / 4298 441
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Space weather facts
| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/10 | M1.2 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 157.7 +65.9 |
| Last 30 days | 108.9 +11.4 |