Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
---|---|---|---|---|---|
1997/04/15 | 2 | 10 | CRO | S23E20 | |
1997/04/16 | 13 | 40 | CRO | S22E06 | |
1997/04/19 | 3 | 10 | BXO | S23W34 |
B | C |
---|---|
4 | 1 |
Start | Maximum | End | ||||
---|---|---|---|---|---|---|
1 | C2.07 | 1997/04/15 | 14:00 | 14:20 | 14:26 | |
2 | B9 | 1997/04/15 | 09:57 | 10:02 | 10:05 | |
3 | B7.79 | 1997/04/15 | 10:10 | 10:19 | 10:30 | |
4 | B4.53 | 1997/04/15 | 20:04 | 20:07 | 20:09 | |
5 | B2.21 | 1997/04/15 | 06:41 | 06:45 | 06:47 |
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Last X-flare | 2025/01/04 | X1.85 |
Last M-flare | 2025/01/21 | M3.3 |
Last geomagnetic storm | 2025/01/04 | Kp5 (G1) |
Spotless days | |
---|---|
Last spotless day | 2022/06/08 |
Monthly mean Sunspot Number | |
---|---|
December 2024 | 154.5 +2 |
January 2025 | 145.2 -9.3 |
Last 30 days | 163.2 +45.8 |