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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1A1.57 Kp2+ | 2Kp1 | 3Kp1 | ||||
4Kp2 | 5A8.76 Kp2 | 6Kp3- | 7Kp2 | 8Kp1 | 9Kp2+ | 10Kp1+ |
11A1.57 Kp3- | 12Kp2+ | 13Kp1+ | 14Kp2 | 15Kp1+ | 16Kp2+ | 17Kp3- |
18A6.43 Kp0+ | 19Kp1+ | 20Kp1 | 21Kp4- | 22Kp4 | 23Kp3 | 24Kp3+ |
25B1.19 Kp2 | 26Kp2 | 27Kp2 | 28Kp2- | 29Kp3- | 30Kp1+ | |
Latest news
Thursday, 11 September 2025
Coronal hole faces Earth
Sunday, 31 August 2025
M2.7 solar flare with earth-directed CME!
Tuesday, 5 August 2025
M4.4 solar flare from sunspot region 4168
Latest forum messages
Comet C/2025 A6 (Lemmon) 72CMEs from 2025/10/03 48Coronal Hole 85 2Unspecified geomagnetic activity 3204Incoming & Unnumbered Active Regions 2108
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Space weather facts
| Last X-flare | 2025/06/19 | X1.9 |
| Last M-flare | 2025/10/03 | M1.2 |
| Last geomagnetic storm | 2025/10/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| September 2025 | 129.8 -3.7 |
| October 2025 | 140.1 +10.3 |
| Last 30 days | 131.3 -1.2 |