Sunspot region AR11381
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2011/12/19 | 5 | 40 | DAO | S18E19 | |
| 2011/12/20 | 9 | 80 | DAI | S18E10 | |
| 2011/12/21 | 8 | 90 | DAO | S17W01 | |
| 2011/12/22 | 7 | 70 | CSO | S15W17 | |
| 2011/12/23 | 15 | 180 | DAI | S18W28 | |
| 2011/12/24 | 8 | 40 | DAO | S20W44 | |
| 2011/12/25 | 2 | 150 | HSX | S19W54 | |
| 2011/12/26 | 2 | 100 | CSO | S18W68 | |
| 2011/12/27 | 1 | 120 | HSX | S18W80 | |
| 2011/12/28 | 1 | 80 | HSX | S18W93 |
| B | C |
|---|---|
| 1 | 4 |
The top 5 solar flares from sunspot region 11381
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C7.85 | 2011/12/22 | 01:56 | 02:08 | 02:20 | |
| 2 | C2.18 | 2011/12/20 | 00:38 | 00:44 | 00:50 | |
| 3 | C1.75 | 2011/12/17 | 23:37 | 23:44 | 23:49 | |
| 4 | C1.07 | 2011/12/18 | 01:21 | 01:26 | 01:32 | |
| 5 | B6.88 | 2011/12/18 | 03:18 | 03:22 | 03:29 |
Latest news
Monday, 30 March 2026
X1.5 solar flare
Tuesday, 17 March 2026
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| Last X-flare | 2026/04/24 | X2.5 |
| Last M-flare | 2026/04/27 | M1.0 |
| Last geomagnetic storm | 2026/04/20 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
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| April 2026 | 85 -0.9 |
| Last 30 days | 90.9 +8.3 |
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