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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December 1997 |
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Monday Mon. |
Tuesday Tues. |
Wednesday Wed. |
Thursday Thurs. |
Friday Fri. |
Saturday Sat. |
Sunday Sun. |
1M1.6 Kp3- | 2C1.8 Kp2- | 3C2.96 Kp2+ | 4C1.83 Kp3 | 5Kp3- | 6C1.93 Kp2- | 7B6.99 Kp2- |
8B4.83 Kp0+ | 9C1.03 Kp1 | 10B5.27 Kp4 | 11B5.84 Kp3+ | 12C3.13 Kp1+ | 13B5.09 Kp1- | 14C1.59 Kp1 |
15C3.19 Kp2+ | 16B5.89 Kp3- | 17B4.81 Kp2+ | 18B4.41 Kp4- | 19C1.61 Kp2 | 20B8.09 Kp1+ | 21C9.27 Kp3- |
22C8.64 Kp1 | 23Kp2- | 24C1.04 Kp2+ | 25B6.03 Kp1 | 26C2.74 Kp1 | 27C4.33 Kp0+ | 28B6.51 Kp0+ |
29B5.8 Kp1+ | 30B9.96 Kp5- | 31C6.03 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
What, no CH/HSS thread? 44Incoming & Unnumbered Active Regions 166AR4374 19Current Farside Activity 382Filaments and prominences 489
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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 | 2026/02/15 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 109 -3.6 |
| Last 30 days | 126.2 +24.2 |