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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Friday Fri. |
Saturday Sat. |
Sunday Sun. |
1M3.9 Kp4- | 2Kp3- | 3B7.8 Kp3- | 4B8.7 Kp3+ | 5C3.8 Kp3+ | 6C1.6 Kp3 | 7C1.1 Kp2+ |
8C1.4 Kp3+ | 9C1 Kp3+ | 10C4 Kp3- | 11M5.47 Kp3- | 12C8.8 Kp2+ | 13M2.41 Kp2 | 14M4.3 Kp2- |
15M4.02 Kp3- | 16M1.1 Kp5+ | 17M1.6 Kp3 | 18M2.2 Kp2- | 19M2.1 Kp7 | 20C7.5 Kp3- | 21M3.43 Kp4 |
22M2.81 Kp2+ | 23M3.64 Kp3- | 24M2 Kp1 | 25M1.3 Kp1- | 26C6.5 Kp5 | 27M3.1 Kp3+ | 28C8.3 Kp4- |
29M3.71 Kp3- | 30M9.53 Kp4+ | |||||
Latest news
Wednesday, 14 May 2025
Another X-flare! Potent sunspot region 4087!
Tuesday, 13 May 2025
X1.1 solar flare from sunspot region 4086
Tuesday, 15 April 2025
CME arrival, G3 storm watch
Latest forum messages
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Space weather facts
| Last X-flare | 2025/05/25 | X1.1 |
| Last M-flare | 2025/05/26 | M1.4 |
| Last geomagnetic storm | 2025/05/17 | Kp6+ (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2025 | 140.6 +6.4 |
| May 2025 | 78.1 -62.5 |
| Last 30 days | 79 -47.1 |