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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Sunday Sun. |
1Kp4- | 2Kp2 | 3Kp1+ | 4Kp1- | 5Kp1 | ||
6C2.18 Kp6- | 7Kp5 | 8B2.07 Kp3- | 9Kp1+ | 10Kp4+ | 11Kp3+ | 12Kp2 |
13Kp1 | 14B2.08 Kp2+ | 15Kp3- | 16Kp2 | 17B1.72 Kp2 | 18B4.74 Kp2- | 19Kp3- |
20Kp1 | 21Kp2 | 22B1.8 Kp2- | 23Kp1- | 24C2.9 Kp1- | 25Kp3 | 26Kp4 |
27Kp4 | 28Kp4- | 29Kp2 | 30Kp2 | 31B2.25 Kp3- | ||
Latest news
Tuesday, 15 April 2025
CME arrival, G3 storm watch
Friday, 28 March 2025
X1.1 solar flare
Monday, 24 March 2025
Coronal hole faces Earth
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AR4073 1AR 4065 13Ask your obscure/"stupid" space weather questions. 376AR4064 29Filaments and prominences 106
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Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/22 | M1.3 |
| Last geomagnetic storm | 2025/04/21 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 122.8 -11.4 |
| Last 30 days | 117.7 -15.6 |