Sunspot region AR12671
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2017/08/15 | 2 | 70 | HAX | N10E75 | |
| 2017/08/16 | 11 | 170 | EAI | N10E61 | |
| 2017/08/17 | 20 | 380 | EHC | N11E49 | |
| 2017/08/18 | 20 | 280 | FKC | N11E34 | |
| 2017/08/19 | 31 | 410 | FKC | N10E22 | |
| 2017/08/20 | 23 | 360 | FKC | N12E08 | |
| 2017/08/21 | 20 | 410 | FKC | N11W05 | |
| 2017/08/22 | 18 | 430 | FKC | N11W18 | |
| 2017/08/23 | 18 | 250 | FSI | N10W31 | |
| 2017/08/24 | 12 | 220 | FSI | N11W45 | |
| 2017/08/25 | 11 | 200 | FSI | N11W56 | |
| 2017/08/26 | 7 | 140 | FAI | N13W68 | |
| 2017/08/27 | 5 | 120 | FAI | N14W84 | |
| 2017/08/28 | 4 | 120 | FAI | N14W97 |
2017/08/15
2017/08/16
2017/08/17
2017/08/18
2017/08/19
2017/08/20
2017/08/21
2017/08/22
2017/08/23
2017/08/24
2017/08/25
2017/08/26
2017/08/27
|
2017/08/15
2017/08/16
2017/08/17
2017/08/18
2017/08/19
2017/08/20
2017/08/21
2017/08/22
2017/08/23
2017/08/24
2017/08/25
2017/08/26
2017/08/27
|
| B | C | M |
|---|---|---|
| 38 | 32 | 1 |
The top 10 solar flares from sunspot region 12671
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.15 | 2017/08/19 | 20:54 | 21:55 | 22:05 | |
| 2 | C9.05 | 2017/08/27 | 15:11 | 15:16 | 15:19 | |
| 3 | C4.9 | 2017/08/24 | 00:30 | 00:37 | 00:45 | |
| 4 | C4.77 | 2017/08/20 | 07:45 | 07:50 | 07:54 | |
| 5 | C4.75 | 2017/08/18 | 21:01 | 21:04 | 21:10 | |
| 6 | C4.46 | 2017/08/14 | 10:39 | 10:46 | 10:49 | |
| 7 | C3.78 | 2017/08/14 | 21:46 | 22:10 | 22:17 | |
| 8 | C3.14 | 2017/08/23 | 17:43 | 17:56 | 18:22 | |
| 9 | C3.11 | 2017/08/22 | 19:32 | 19:37 | 19:43 | |
| 10 | C3.08 | 2017/08/22 | 17:42 | 17:50 | 17:53 |
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Space weather facts
| Last X-flare | 2025/06/19 | X1.9 |
| Last M-flare | 2025/10/03 | M1.2 |
| Last geomagnetic storm | 2025/10/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| September 2025 | 129.8 -3.7 |
| October 2025 | 140.1 +10.3 |
| Last 30 days | 131.3 -1.2 |