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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Saturday Sat. |
Sunday Sun. |
1Kp3- | 2B3.97 Kp0+ | 3B2.69 Kp1 | 4B6.06 Kp3+ | 5Kp5 | 6C2.37 Kp3 | |
7A8.88 Kp2+ | 8Kp2+ | 9Kp2- | 10Kp1+ | 11Kp3+ | 12A1.57 Kp1 | 13Kp1 |
14Kp3- | 15Kp3- | 16Kp3- | 17Kp3- | 18Kp2 | 19A1.57 Kp3- | 20Kp2- |
21Kp2- | 22Kp2 | 23A9.93 Kp4 | 24B1.44 Kp4+ | 25B9.93 Kp3+ | 26C7.2 Kp3 | 27Kp2 |
28B2.85 Kp1- | 29C3.01 Kp2- | 30C7.56 Kp1 | 31C1.03 Kp5+ | |||
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
AR4405 15AR4401 65Incoming & Unnumbered Active Regions 256Photographing auroras 234SDO Imagery is not updated? 6
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/26 | M4.0 |
| 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 | 81.4 +3.2 |
| Last 30 days | 81.4 +3.6 |