| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1998/06/03 | 1 | 220 | HHX | S19E73 | |
| 1998/06/04 | 3 | 280 | CHO | S19E62 | |
| 1998/06/05 | 8 | 360 | CHO | S19E49 | |
| 1998/06/06 | 12 | 380 | DKO | S18E33 | |
| 1998/06/07 | 10 | 330 | DHO | S19E19 | |
| 1998/06/08 | 12 | 360 | CHO | S20E09 | |
| 1998/06/09 | 15 | 340 | CHO | S22W03 | |
| 1998/06/10 | 6 | 290 | CKO | S21W18 | |
| 1998/06/11 | 12 | 360 | CKO | S22W31 | |
| 1998/06/12 | 12 | 320 | CKO | S21W42 | |
| 1998/06/13 | 3 | 290 | HKX | S21W59 | |
| 1998/06/14 | 3 | 220 | HHX | S21W72 | |
| 1998/06/15 | 2 | 180 | HHX | S21W84 |
| B | C |
|---|---|
| 1 | 9 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C6.99 | 1998/06/08 | 15:56 | 16:07 | 16:14 | |
| 2 | C4.29 | 1998/06/07 | 14:43 | 14:54 | 15:16 | |
| 3 | C1.87 | 1998/06/05 | 04:39 | 04:45 | 04:51 | |
| 4 | C1.83 | 1998/06/15 | 06:00 | 07:50 | 09:37 | |
| 5 | C1.67 | 1998/06/05 | 09:47 | 09:53 | 09:57 | |
| 6 | C1.56 | 1998/06/05 | 14:15 | 14:20 | 14:23 | |
| 7 | C1.39 | 1998/06/04 | 20:34 | 20:39 | 20:46 | |
| 8 | C1.38 | 1998/06/04 | 21:28 | 21:43 | 21:49 | |
| 9 | C1.17 | 1998/06/05 | 06:43 | 06:48 | 06:54 | |
| 10 | B9.14 | 1998/06/04 | 11:20 | 11:24 | 11:27 |
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| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/10 | M1.6 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 157.7 +65.9 |
| Last 30 days | 108.9 +11.4 |