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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April 2005 |
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Friday Fri. |
Saturday Sat. |
Sunday Sun. |
1Kp2+ | 2Kp1+ | 3B3.96 Kp2 | ||||
4B4.18 Kp6 | 5C1.7 Kp7 | 6C2.31 Kp4- | 7B8.09 Kp3- | 8Kp2+ | 9C1.18 Kp2- | 10C1.18 Kp1 |
11C1.48 Kp4 | 12C2.88 Kp5 | 13Kp5 | 14B4.18 Kp4+ | 15Kp4- | 16C1.11 Kp3 | 17C6.71 Kp2+ |
18B5.37 Kp3- | 19C1.15 Kp3- | 20Kp5- | 21Kp2- | 22B1.6 Kp3 | 23B4.5 Kp2+ | 24B8.24 Kp3 |
25C1.03 Kp3+ | 26C7.66 Kp1 | 27B6.22 Kp1+ | 28C4.32 Kp1+ | 29C2.46 Kp4- | 30C1.52 Kp5 | |
Latest news
Monday, 6 May 2024
X4.5 solar flare
Saturday, 4 May 2024
Sunspot region 3663, X1 solar flare
Monday, 22 April 2024
Lot's of sunspots! Big chance for major flare activity?
Latest forum messages
AR3664 193[CME] AR 13664, X1.04, 2024-05-08 10Unproven theories 385Incoming Active Regions 239AR3663 248
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Space weather facts
| Last X-flare | 2024/05/08 | X1.0 |
| Last M-flare | 2024/05/08 | M8.5 |
| Last geomagnetic storm | 2024/05/06 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2024 | 136.5 +31.6 |
| Last 30 days | 161.2 +69.2 |