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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Monday Mon. |
Tuesday Tues. |
Wednesday Wed. |
Thursday Thurs. |
Friday Fri. |
Saturday Sat. |
Sunday Sun. |
1C1.38 Kp2+ | 2B1.41 Kp2 | 3Kp1+ | 4Kp3+ | 5B6.38 Kp3- | 6B4.67 Kp2- | 7Kp3 |
8Kp2 | 9Kp2 | 10Kp3- | 11Kp3- | 12Kp3 | 13Kp1+ | 14Kp3 |
15Kp4- | 16B2.76 Kp3- | 17Kp2+ | 18B1.57 Kp4- | 19Kp4- | 20Kp4+ | 21B1.67 Kp3- |
22B1.81 Kp3 | 23B5.93 Kp3 | 24B5.02 Kp1+ | 25B6.73 Kp1 | 26B3.8 Kp1 | 27C1.29 Kp6- | 28C4.8 Kp7 |
29B9.37 Kp4 | 30B9.48 Kp3+ | 31C2.95 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
Do the high-resolution sunspot counts point to more complex sunspots? 57Current Farside Activity 371Incoming & Unnumbered Active Regions 154Feb 8-9 CMEs 21AR4366 999
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Space weather facts
| Last X-flare | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/08 | 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 | 137.7 +25.1 |
| Last 30 days | 127.6 +24.1 |