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 | 2Kp5- | 3Kp3 | 4Kp3- | |||
5Kp3+ | 6Kp4 | 7Kp2 | 8Kp2- | 9Kp1+ | 10Kp2 | 11Kp2- |
12B2.04 Kp1+ | 13Kp2- | 14Kp1 | 15Kp1+ | 16Kp2- | 17B2.55 Kp1- | 18Kp2- |
19Kp2 | 20Kp3 | 21Kp4- | 22Kp3+ | 23Kp3+ | 24Kp3+ | 25Kp2+ |
26Kp1+ | 27Kp2 | 28Kp3+ | 29Kp3 | 30Kp4- | 31Kp3 | |
Latest news
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Wednesday, 31 December 2025
Happy New Year! Celebrate with an M7.1 solar flare!
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Space weather facts
| Last X-flare | 2026/01/18 | X1.9 |
| Last M-flare | 2026/01/19 | M1.2 |
| Last geomagnetic storm | 2026/01/19 | Kp9- (G4) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 103.8 -20.2 |
| Last 30 days | 109.8 +2 |