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+ | 2Kp2+ | |||||
3Kp3- | 4Kp1 | 5Kp2 | 6Kp4 | 7Kp3- | 8Kp1+ | 9Kp2 |
10Kp2 | 11Kp1+ | 12Kp2- | 13Kp2 | 14Kp1 | 15Kp1 | 16Kp1- |
17Kp1 | 18Kp1 | 19Kp3 | 20Kp4- | 21Kp3- | 22Kp2 | 23Kp2+ |
24Kp1 | 25Kp1 | 26Kp2 | 27Kp3- | 28Kp1+ | 29Kp1 | 30Kp6- |
31Kp2+ | ||||||
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!
Latest forum messages
X1.9 CME 1327Do the high-resolution sunspot counts point to more complex sunspots? 8AR 14340 19AR 4345 31Unspecified geomagnetic activity 62
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Space weather facts
| Last X-flare | 2026/01/18 | X1.9 |
| Last M-flare | 2026/01/21 | M3.4 |
| Last geomagnetic storm | 2026/01/22 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 114.4 -9.6 |
| Last 30 days | 118.1 +9.1 |