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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1Kp3+ | 2Kp1 | 3Kp1- | 4A1.57 Kp2- | |||
5Kp5+ | 6Kp3 | 7Kp2+ | 8Kp3- | 9Kp3- | 10Kp3- | 11A1.57 Kp2+ |
12Kp2- | 13Kp2 | 14Kp1+ | 15Kp1+ | 16Kp2 | 17Kp2 | 18A1.57 Kp3- |
19Kp1 | 20Kp2- | 21Kp1+ | 22Kp2+ | 23Kp2- | 24Kp2 | 25Kp2- |
26A1.57 Kp2+ | 27Kp3 | 28Kp2 | 29Kp2- | 30Kp3+ | 31Kp6- | |
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
AR4366 1001Do the high-resolution sunspot counts point to more complex sunspots? 57Current Farside Activity 371Incoming & Unnumbered Active Regions 154Feb 8-9 CMEs 21
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Space weather facts
| Last X-flare | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/09 | M2.8 |
| 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 | 135.3 +22.7 |
| Last 30 days | 127.2 +23.7 |