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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1Kp3- | 2Kp3- | 3Kp4- | 4Kp2+ | |||
5Kp2 | 6Kp2 | 7Kp1 | 8Kp2 | 9Kp2 | 10B5.82 Kp3 | 11Kp1 |
12Kp0+ | 13Kp2 | 14Kp2+ | 15Kp2+ | 16Kp2 | 17Kp1+ | 18Kp1 |
19Kp4 | 20Kp2 | 21Kp2 | 22Kp1- | 23Kp1- | 24Kp1 | 25Kp2- |
26Kp3+ | 27Kp2 | 28Kp1 | 29Kp2+ | 30Kp2 | 31Kp3- | |
Latest news
Monday, 30 March 2026
X1.5 solar flare
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
Latest forum messages
Late 2026/04/01 Filament CME 86AR4405 239AR4409 129Space Weather Memes 814Comet C/2026 A1 (MAPS) for the southern hemisphere 38
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Space weather facts
| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/04 | M7.6 |
| Last geomagnetic storm | 2026/04/03 | Kp7- (G3) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2026 | 85.9 +7.7 |
| April 2026 | 133.3 +47.4 |
| Last 30 days | 96.1 +32 |
This day in history*
Aurora on this day in history
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