| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2017/04/22 | 1 | 40 | HAX | S09E82 | |
| 2017/04/23 | 2 | 100 | HAX | S09E57 | |
| 2017/04/24 | 2 | 100 | HAX | S09E45 | |
| 2017/04/25 | 2 | 90 | HAX | S08E34 | |
| 2017/04/26 | 2 | 60 | HAX | S11E21 | |
| 2017/04/27 | 1 | 50 | HSX | S09E08 | |
| 2017/04/28 | 1 | 40 | HAX | S09W06 | |
| 2017/04/29 | 1 | 30 | HSX | S09W20 | |
| 2017/04/30 | 1 | 30 | HSX | S09W33 | |
| 2017/05/01 | 1 | 20 | HRX | S09W46 | |
| 2017/05/02 | 1 | 20 | HRX | S08W59 | |
| 2017/05/03 | 1 | 10 | AXX | S08W73 |
| B |
|---|
| 3 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | B6.47 | 2017/04/26 | 17:36 | 17:48 | 17:59 | |
| 2 | B3.93 | 2017/04/30 | 00:12 | 00:57 | 02:25 | |
| 3 | B1.48 | 2017/04/28 | 17:09 | 17:12 | 17:15 |
A lot of people come to SpaceWeatherLive to follow the Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!
| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/12 | M1.1 |
| Last geomagnetic storm | 2025/12/12 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 135.1 +43.3 |
| Last 30 days | 107.1 +10.8 |