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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1Kp1+ | 2Kp3 | 3Kp3+ | 4Kp1+ | 5Kp1- | ||
6Kp1- | 7Kp6+ | 8Kp6+ | 9Kp4- | 10Kp4 | 11Kp3 | 12B3.17 Kp2+ |
13C1.04 Kp2+ | 14B1.59 Kp3 | 15Kp3+ | 16B5 Kp4+ | 17B9.16 Kp2+ | 18B1.29 Kp2 | 19Kp2+ |
20Kp4- | 21B2.09 Kp5 | 22Kp3 | 23B2.02 Kp3- | 24Kp3+ | 25B1.93 Kp3+ | 26Kp1 |
27B3.74 Kp2 | 28Kp3+ | 29Kp2 | 30Kp4 | |||
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 450Sporadic E and Flare activity 37Notification bug 1AR4294 / 4296 / 4298 450Geminid Meteor Shower 2
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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 |