Sunspot region AR12661
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2017/06/01 | 1 | 30 | HRX | N06E79 | |
| 2017/06/02 | 8 | 60 | CAI | N05E64 | |
| 2017/06/03 | 9 | 200 | DAO | N06E54 | |
| 2017/06/04 | 12 | 180 | EAO | N06E39 | |
| 2017/06/05 | 13 | 130 | EAO | N06E26 | |
| 2017/06/06 | 12 | 170 | EAO | N06E13 | |
| 2017/06/07 | 8 | 130 | CAO | N06W01 | |
| 2017/06/08 | 3 | 40 | HAX | N07W11 | |
| 2017/06/09 | 2 | 10 | AXX | N07W22 |
2017/06/01
2017/06/02
2017/06/03
2017/06/04
2017/06/05
2017/06/06
2017/06/07
2017/06/08
2017/06/09
|
2017/06/01
2017/06/02
2017/06/03
2017/06/04
2017/06/05
2017/06/06
2017/06/07
2017/06/08
2017/06/09
|
| B | C | M |
|---|---|---|
| 21 | 18 | 1 |
The top 10 solar flares from sunspot region 12661
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.16 | 2017/06/02 | 17:50 | 17:57 | 18:01 | |
| 2 | C9.47 | 2017/06/01 | 01:12 | 01:43 | 01:53 | |
| 3 | C3.83 | 2017/06/05 | 05:14 | 05:31 | 05:41 | |
| 4 | C3.66 | 2017/06/03 | 14:47 | 14:56 | 15:00 | |
| 5 | C3.61 | 2017/06/01 | 09:22 | 09:25 | 09:29 | |
| 6 | C3.6 | 2017/06/03 | 19:21 | 19:34 | 19:41 | |
| 7 | C3.04 | 2017/06/03 | 09:37 | 09:57 | 10:05 | |
| 8 | C2.95 | 2017/05/31 | 23:06 | 23:15 | 23:23 | |
| 9 | C2.1 | 2017/06/01 | 17:56 | 18:09 | 18:33 | |
| 10 | C1.98 | 2017/06/01 | 06:53 | 07:53 | 08:09 |
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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 |