| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2017/06/16 | 7 | 50 | DSO | N14W00 | |
| 2017/06/17 | 7 | 90 | DSO | N13W14 | |
| 2017/06/18 | 7 | 100 | DSO | N12W28 | |
| 2017/06/19 | 6 | 80 | DSO | N12W41 | |
| 2017/06/20 | 4 | 60 | CSO | N13W55 | |
| 2017/06/21 | 1 | 40 | HSX | N14W72 | |
| 2017/06/22 | 1 | 30 | HSX | N14W85 | |
| 2017/06/23 | 1 | 30 | HSX | N14W99 |
| B |
|---|
| 7 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | B3.76 | 2017/06/15 | 16:57 | 17:00 | 17:06 | |
| 2 | B3.76 | 2017/06/18 | 13:33 | 13:44 | 13:54 | |
| 3 | B3.3 | 2017/06/18 | 09:10 | 09:21 | 09:32 | |
| 4 | B2.69 | 2017/06/18 | 21:30 | 21:40 | 21:48 | |
| 5 | B1.66 | 2017/06/17 | 02:51 | 02:57 | 03:01 | |
| 6 | B1.6 | 2017/06/18 | 12:35 | 12:40 | 12:59 | |
| 7 | B1.07 | 2017/06/19 | 13:03 | 13:06 | 13:09 |
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| Last X-flare | 2026/01/18 | X1.9 |
| Last M-flare | 2026/01/21 | M3.4 |
| Last geomagnetic storm | 2026/01/22 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 117.9 -6.1 |
| Last 30 days | 121.4 +11.9 |