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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1Kp2+ | 2Kp1+ | 3Kp1 | 4A1.1 Kp3 | 5Kp3+ | ||
6Kp1+ | 7Kp2- | 8Kp1- | 9Kp1 | 10Kp1+ | 11Kp1 | 12Kp1- |
13Kp3- | 14Kp4- | 15Kp2 | 16Kp2- | 17Kp1+ | 18Kp1+ | 19Kp2- |
20Kp1 | 21Kp2- | 22Kp1+ | 23Kp1 | 24Kp4- | 25Kp4 | 26Kp1 |
27Kp1 | 28Kp2 | 29Kp2 | 30Kp2- | 31A1 Kp1+ | ||
Latest news
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Latest forum messages
AR 4373 4Filaments and prominences 486Do the high-resolution sunspot counts point to more complex sunspots? 61AR4366 1020Yes, we really went to the moon before. 1
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Space weather facts
| Last X-flare | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/11 | M1.3 |
| Last geomagnetic storm | 2026/02/05 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 129.4 +16.8 |
| Last 30 days | 129.3 +29.3 |