Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
---|---|---|---|---|---|
1999/04/13 | 10 | 30 | BXO | S33E08 | |
1999/04/14 | 11 | 40 | CAO | S33W06 | |
1999/04/15 | 8 | 30 | CAO | S34W24 | |
1999/04/16 | 7 | 20 | BXO | S33W33 | |
1999/04/17 | 3 | 30 | CSO | S32W47 | |
1999/04/18 | 9 | 80 | EAO | S30W58 | |
1999/04/19 | 6 | 30 | BXO | S33W69 | |
1999/04/20 | 1 | 10 | AXX | S31W85 |
B |
---|
2 |
Start | Maximum | End | ||||
---|---|---|---|---|---|---|
1 | B8.64 | 1999/04/17 | 23:35 | 23:42 | 23:47 | |
2 | B6.7 | 1999/04/17 | 20:30 | 20:38 | 20:44 |
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Last X-flare | 2024/10/31 | X2.0 |
Last M-flare | 2024/10/31 | M4.6 |
Last geomagnetic storm | 2024/10/12 | Kp5 (G1) |
Spotless days | |
---|---|
Last spotless day | 2022/06/08 |
Monthly mean Sunspot Number | |
---|---|
September 2024 | 141.4 -74.1 |
Last 30 days | 157.2 +7.5 |