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- | ||||||
2Kp1 | 3Kp2- | 4Kp1+ | 5Kp5- | 6C2.4 Kp4- | 7B1.86 Kp2 | 8B1.46 Kp1+ |
9Kp1- | 10Kp2+ | 11Kp3- | 12Kp3- | 13Kp3- | 14Kp2- | 15B2.18 Kp1+ |
16Kp3- | 17Kp3 | 18Kp1 | 19Kp1 | 20Kp2 | 21Kp3+ | 22Kp1+ |
23Kp1 | 24Kp4 | 25Kp3+ | 26Kp1+ | 27Kp2- | 28A7.25 Kp2 | 29B1.13 Kp1+ |
30Kp2 | 31Kp2+ | |||||
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
CME March 1 6AR4379/4380 13Did ChatGPT Find a New Solar Physics Formula? 20Incoming & Unnumbered Active Regions 213Forum alert bar hidden at the bottom 6
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/02/25 | M2.4 |
| Last geomagnetic storm | 2026/02/22 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (5%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 76.8 -35.8 |
| Last 30 days | 83.1 -38 |