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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1Kp0 | 2Kp0 | 3Kp2 | 4Kp3+ | 5Kp4 | 6Kp4+ | 7Kp2+ |
8Kp1+ | 9Kp0+ | 10Kp2- | 11C2.09 Kp2- | 12Kp1+ | 13Kp1+ | 14Kp1- |
15Kp1+ | 16Kp3- | 17Kp3- | 18Kp1- | 19Kp1+ | 20Kp1- | 21Kp1 |
22Kp3+ | 23Kp4- | 24Kp3- | 25Kp2 | 26Kp2- | 27Kp1+ | 28Kp1 |
29Kp0+ | 30Kp1 | 31Kp3+ | ||||
Latest news
Monday, 1 December 2025
X1.9 solar flare, Coronal hole faces Earth
Friday, 14 November 2025
X4.0 solar flare
Tuesday, 11 November 2025
X5.1 solar flare, G4 geomagnetic storm watch
Latest forum messages
AR 4299 54AR4294 / 4296 / 4298 334Electron event 8Incoming & Unnumbered Active Regions 18Growth of Cycle 25 973
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Space weather facts
| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/06 | M8.1 |
| 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 | 175.4 +83.6 |
| Last 30 days | 107.3 +14.6 |