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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1Kp4- | 2B1.14 Kp4- | 3Kp2+ | 4Kp2- | 5Kp3 | 6Kp3 | 7Kp5+ |
8Kp4+ | 9Kp4- | 10B1.98 Kp5- | 11Kp3 | 12C1.02 Kp2- | 13B3.34 Kp4+ | 14Kp2 |
15Kp3 | 16Kp2 | 17Kp2- | 18Kp0+ | 19Kp1- | 20Kp0+ | 21Kp2 |
22Kp3- | 23Kp1 | 24Kp1+ | 25Kp2 | 26Kp2+ | 27Kp2- | 28Kp1+ |
29A1.43 Kp0+ | 30Kp2 | 31Kp2- | ||||
Latest news
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Latest forum messages
Incoming & Unnumbered Active Regions 228An interesting article about the suns dynamo 2CMes from ar 4392 (19-21st of march) 63AR4392 (including CMEs) 120CH 31 HSS 26
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/18 | M2.7 |
| Last geomagnetic storm | 2026/03/14 | Kp6 (G2) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (4%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 80.1 +1.9 |
| Last 30 days | 62.9 -47.9 |