Sunspot region AR12664
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2017/06/21 | 1 | 80 | CSO | N18E72 | |
| 2017/06/22 | 1 | 50 | HSX | N17E60 | |
| 2017/06/23 | 1 | 50 | HSX | N17E47 | |
| 2017/06/24 | 1 | 70 | HSX | N18E35 | |
| 2017/06/25 | 7 | 70 | CSO | N18E21 | |
| 2017/06/26 | 10 | 90 | CSO | N18E07 | |
| 2017/06/27 | 9 | 90 | DSI | N18W07 | |
| 2017/06/28 | 7 | 100 | DSI | N18W19 | |
| 2017/06/29 | 3 | 60 | CSO | N18W33 | |
| 2017/06/30 | 2 | 50 | CSO | N18W46 | |
| 2017/07/01 | 1 | 50 | HSX | N17W58 | |
| 2017/07/02 | 1 | 20 | HSX | N18W71 | |
| 2017/07/03 | 1 | 20 | HSX | N18W85 |
2017/06/21
2017/06/22
2017/06/23
2017/06/24
2017/06/25
2017/06/26
2017/06/27
2017/06/28
2017/06/29
2017/06/30
2017/07/01
2017/07/02
2017/07/03
|
2017/06/21
2017/06/22
2017/06/23
2017/06/24
2017/06/25
2017/06/26
2017/06/27
2017/06/28
2017/06/29
2017/06/30
2017/07/01
2017/07/02
2017/07/03
|
| B | C |
|---|---|
| 11 | 1 |
The top 10 solar flares from sunspot region 12664
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C1.1 | 2017/07/03 | 06:33 | 06:37 | 06:39 | |
| 2 | B4.64 | 2017/07/03 | 06:17 | 06:21 | 06:25 | |
| 3 | B4.14 | 2017/07/02 | 12:23 | 12:39 | 12:59 | |
| 4 | B3.44 | 2017/07/03 | 11:21 | 11:25 | 11:29 | |
| 5 | B3.42 | 2017/06/27 | 21:09 | 21:15 | 21:19 | |
| 6 | B2.91 | 2017/06/20 | 06:01 | 07:18 | 08:48 | |
| 7 | B2.4 | 2017/07/03 | 07:06 | 07:10 | 07:12 | |
| 8 | B1.82 | 2017/06/22 | 00:36 | 00:49 | 01:02 | |
| 9 | B1.55 | 2017/07/03 | 07:28 | 07:31 | 07:34 | |
| 10 | B1.52 | 2017/06/26 | 07:23 | 07:28 | 07:33 |
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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 |