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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1Kp0 | 2Kp0 | 3Kp2 | 4Kp3+ | 5Kp4 | 6Kp4+ | 7Kp2+ |
8Kp1+ | 9Kp0+ | 10Kp2- | 11C2.09 Kp2- | 12Kp1+ | 13Kp1+ | 14Kp1- |
15Kp1+ | 16Kp3- | 17Kp3- | 18Kp1- | 19Kp1+ | 20Kp1- | 21Kp1 |
22Kp3+ | 23Kp4- | 24Kp3- | 25Kp2 | 26Kp2- | 27Kp1+ | 28Kp1 |
29Kp0+ | 30Kp1 | 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
X1.5 CME (2026-03-30) 86Comet C/2026 A1 (MAPS) for the southern hemisphere 23Photographing auroras 238AR4405 71Unspecified geomagnetic activity 136
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Space weather facts
| Last X-flare | 2026/03/30 | X1.4 |
| Last M-flare | 2026/03/28 | M1.3 |
| Last geomagnetic storm | 2026/03/25 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 86.6 +8.4 |
| Last 30 days | 86.6 +11.2 |
This day in history*
Aurora on this day in history
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