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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1B3.05 Kp4- | 2Kp4+ | 3Kp4 | 4B2.55 Kp3- | 5Kp1- | 6Kp2 | |
7B1.59 Kp2 | 8Kp1 | 9Kp3- | 10B1.86 Kp5- | 11Kp4+ | 12B3.58 Kp4 | 13B1.9 Kp5- |
14B1.18 Kp3 | 15B8.22 Kp3+ | 16Kp2- | 17Kp1+ | 18Kp2 | 19B2.22 Kp1 | 20Kp1 |
21B1.16 Kp3- | 22B2.79 Kp4+ | 23B7.99 Kp4 | 24Kp5- | 25B2.92 Kp5+ | 26B2.02 Kp3 | 27B4.05 Kp3- |
28C2.01 Kp3 | 29M1.81 Kp2+ | 30C8.7 Kp1+ | ||||
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 332Geminid Meteor Shower 1AR4294 / 4296 / 4298 445Growth of Cycle 25 977Light pillar 12
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Space weather facts
| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/10 | M1.9 |
| 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 |