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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1Kp4- | 2Kp2 | 3Kp1+ | 4Kp1- | 5Kp1 | ||
6C2.18 Kp6- | 7Kp5 | 8B2.07 Kp3- | 9Kp1+ | 10Kp4+ | 11Kp3+ | 12Kp2 |
13Kp1 | 14B2.08 Kp2+ | 15Kp3- | 16Kp2 | 17B1.72 Kp2 | 18B4.74 Kp2- | 19Kp3- |
20Kp1 | 21Kp2 | 22B1.8 Kp2- | 23Kp1- | 24C2.9 Kp1- | 25Kp3 | 26Kp4 |
27Kp4 | 28Kp4- | 29Kp2 | 30Kp2 | 31B2.25 Kp3- | ||
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 446Notification bug 1AR4294 / 4296 / 4298 450Geminid Meteor Shower 2Growth of Cycle 25 977
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Space weather facts
| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/10 | M4.4 |
| Last geomagnetic storm | 2025/12/10 | Kp6+ (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 155.3 +63.5 |
| Last 30 days | 109 +10.8 |