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+ | 2Kp3- | 3A1 Kp1+ | 4Kp3- | 5Kp2 | 6Kp2 | |
7Kp1+ | 8A8 Kp1 | 9Kp0+ | 10Kp1 | 11Kp1 | 12Kp2 | 13Kp3 |
14Kp3+ | 15Kp2+ | 16Kp1 | 17Kp1+ | 18Kp2- | 19Kp1 | 20Kp2+ |
21B4.3 Kp1 | 22B1 Kp3- | 23B1.6 Kp4- | 24B4.7 Kp6- | 25B2.9 Kp4+ | 26C1 Kp5- | 27Kp5+ |
28Kp5 | 29Kp4 | 30Kp4 | ||||
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
Do the high-resolution sunspot counts point to more complex sunspots? 72Unspecified geomagnetic activity 69AR4374 21Current Farside Activity 398Incoming & Unnumbered Active Regions 170
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/02/16 | M2.4 |
| Last geomagnetic storm | 2026/02/16 | Kp6 (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 100.6 -12 |
| Last 30 days | 117.7 +9.9 |