Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
---|---|---|---|---|---|
2017/09/04 | 2 | 10 | AXX | N19E64 | |
2017/09/05 | 2 | 10 | AXX | N19E51 | |
2017/09/06 | 1 | 20 | AXX | N18E39 | |
2017/09/07 | 1 | 10 | AXX | N18E25 | |
2017/09/08 | 3 | 10 | BXO | N17E12 | |
2017/09/09 | 3 | 10 | AXX | N17W02 |
B | C |
---|---|
1 | 1 |
Start | Maximum | End | ||||
---|---|---|---|---|---|---|
1 | C3.87 | 2017/09/07 | 22:57 | 23:00 | 23:02 | |
2 | B4.53 | 2017/09/12 | 13:57 | 14:01 | 14:08 |
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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 |