Sunspot region AR12740
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2019/05/04 | 1 | 260 | HHX | N12E80 | |
| 2019/05/05 | 2 | 270 | HHX | N09E67 | |
| 2019/05/06 | 4 | 280 | DHO | N08E54 | |
| 2019/05/07 | 4 | 200 | CSO | N07E40 | |
| 2019/05/08 | 6 | 240 | CSO | N08E28 | |
| 2019/05/09 | 3 | 160 | CAO | N08E14 | |
| 2019/05/10 | 4 | 120 | CAO | N08W00 | |
| 2019/05/11 | 3 | 110 | HAX | N08W13 | |
| 2019/05/12 | 3 | 100 | HAX | N08W27 | |
| 2019/05/13 | 2 | 70 | HAX | N08W40 | |
| 2019/05/14 | 1 | 10 | HRX | N08W53 | |
| 2019/05/15 | 1 | 10 | AXX | N08W67 |
2019/05/04
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2019/05/11
2019/05/12
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2019/05/04
2019/05/05
2019/05/06
2019/05/07
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2019/05/09
2019/05/10
2019/05/11
2019/05/12
2019/05/13
2019/05/14
2019/05/15
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| B | C | M |
|---|---|---|
| 32 | 14 | 2 |
The top 10 solar flares from sunspot region 12740
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.41 | 2019/05/06 | 05:04 | 05:10 | 05:12 | |
| 2 | M1.05 | 2019/05/06 | 13:35 | 13:54 | 13:57 | |
| 3 | C9.66 | 2019/05/09 | 05:40 | 05:51 | 05:56 | |
| 4 | C2.95 | 2019/05/04 | 22:28 | 22:43 | 22:57 | |
| 5 | C2.88 | 2019/05/06 | 08:41 | 08:47 | 08:51 | |
| 6 | C2.43 | 2019/05/06 | 07:23 | 07:41 | 07:54 | |
| 7 | C2.12 | 2019/05/06 | 09:55 | 10:02 | 10:05 | |
| 8 | C1.93 | 2019/05/07 | 11:52 | 11:56 | 11:57 | |
| 9 | C1.67 | 2019/05/07 | 09:51 | 10:48 | 10:58 | |
| 10 | C1.66 | 2019/05/07 | 09:51 | 10:46 | 10:58 |
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Space weather facts
| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/06 | M8.1 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 167.7 +75.9 |
| Last 30 days | 107.1 +13.7 |