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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Tuesday Tues. |
Wednesday Wed. |
Thursday Thurs. |
Friday Fri. |
Saturday Sat. |
Sunday Sun. |
1C9.5 Kp4 | 2C2.9 Kp2+ | |||||
3C2.8 Kp1+ | 4C4.6 Kp4+ | 5M1.7 Kp3+ | 6C1.6 Kp2+ | 7M1.6 Kp3 | 8C3.9 Kp5 | 9C2.5 Kp6- |
10C2.1 Kp3- | 11M1.1 Kp3- | 12C8.8 Kp5 | 13C7.9 Kp5 | 14M1.1 Kp5+ | 15C4.1 Kp4 | 16C6.5 Kp3+ |
17C9.7 Kp3+ | 18C3 Kp3+ | 19M1.5 Kp5- | 20C6 Kp2+ | 21M1.2 Kp5+ | 22C5 Kp6- | 23C4.5 Kp4 |
24C5.1 Kp4+ | 25C9.4 Kp4 | 26M1 Kp6- | 27M2 Kp5- | 28X1.1 Kp4 | 29M1.9 Kp3+ | 30M1.6 Kp2+ |
31M1.2 Kp2 S1 | ||||||
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 502Space Weather Memes 783Do the high-resolution sunspot counts point to more complex sunspots? 44JHelioviewer Tips and Settings 38Incoming & Unnumbered Active Regions 141
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Space weather facts
| Last X-flare | 2026/02/02 | X2.9 |
| Last M-flare | 2026/02/02 | M2.3 |
| Last geomagnetic storm | 2026/01/28 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| February 2026 | 97 -27 |
| Last 30 days | 118.3 +3.5 |