| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2017/01/25 | 3 | 70 | CAO | N15E59 | |
| 2017/01/26 | 7 | 220 | DAO | N15E44 | |
| 2017/01/27 | 6 | 150 | DAO | N15E31 | |
| 2017/01/28 | 8 | 160 | DAO | N15E18 | |
| 2017/01/29 | 5 | 130 | DSO | N15E05 | |
| 2017/01/30 | 3 | 120 | CSO | N15W10 | |
| 2017/01/31 | 1 | 60 | HSX | N15W22 | |
| 2017/02/01 | 1 | 40 | HAX | N15W38 | |
| 2017/02/02 | 1 | 40 | HAX | N15W51 | |
| 2017/02/03 | 1 | 40 | HAX | N16W65 | |
| 2017/02/04 | 1 | 40 | HAX | N16W78 | |
| 2017/02/05 | 1 | 30 | HAX | N16W92 | |
| 2017/02/06 | 1 | 30 | HAX | N16W0* |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | B8.5 | 2017/01/25 | 21:22 | 21:28 | 21:32 | |
| 2 | B6.5 | 2017/01/25 | 15:19 | 15:31 | 15:36 | |
| 3 | B5.2 | 2017/01/24 | 17:47 | 17:55 | 18:01 | |
| 4 | B4.7 | 2017/01/25 | 02:15 | 02:20 | 02:24 | |
| 5 | B4.6 | 2017/01/25 | 16:48 | 16:53 | 16:59 | |
| 6 | B4.1 | 2017/01/26 | 04:06 | 04:12 | 04:15 | |
| 7 | B3.9 | 2017/01/26 | 06:08 | 06:13 | 06:18 | |
| 8 | B3.8 | 2017/01/25 | 19:22 | 19:32 | 19:42 | |
| 9 | B3.2 | 2017/01/24 | 23:44 | 23:49 | 23:54 | |
| 10 | B3.0 | 2017/01/25 | 17:55 | 18:01 | 18:11 |
| Auroral activity | Minor | Severe |
|---|---|---|
| High latitude | 25% | 35% |
| Middle latitude | 5% | 1% |
| Predicted Kp max | 4 |
| Solar activity | |
|---|---|
| M-class solar flare | 25% |
| X-class solar flare | 1% |
| Moon phase |
|---|
| New Moon |
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| Last X-flare: | 2015/05/05 | X2.7 |
| Last M-flare: | 2017/08/20 | M1.1 |
| Last geomagnetic storm: | 2017/08/20 | Kp5 (G1) |
| Number of spotless days in 2017: | 56 | |
| Last spotless day: | 2017/08/01 | |
