| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2015/03/07 | 1 | 30 | HRX | S17E81 | |
| 2015/03/08 | 10 | 180 | DSI | S17E66 | |
| 2015/03/09 | 10 | 180 | DSI | S17E66 | |
| 2015/03/10 | 19 | 260 | DAC | S16E39 | |
| 2015/03/11 | 32 | 280 | DKC | S16E26 | |
| 2015/03/12 | 19 | 350 | DKC | S16E14 | |
| 2015/03/13 | 20 | 340 | DKC | S16W00 | |
| 2015/03/14 | 23 | 420 | DKC | S17W13 | |
| 2015/03/15 | 21 | 320 | EKC | S17W25 | |
| 2015/03/16 | 21 | 370 | EKC | S18W38 | |
| 2015/03/17 | 24 | 380 | EKC | S17W52 | |
| 2015/03/18 | 17 | 390 | FKC | S16W64 | |
| 2015/03/19 | 6 | 290 | EKC | S17W77 | |
| 2015/03/20 | 6 | 250 | CKO | S17W88 | |
| 2015/03/21 | 6 | 250 | CKO | S17W0* |
| B | C | M | X |
|---|---|---|---|
| 5 | 94 | 26 | 2 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | X3.15 | 2015/03/11 | 16:11 | 16:22 | 16:29 | |
| 2 | X1.33 | 2015/03/07 | 21:45 | 22:22 | 22:58 | |
| 3 | M8.38 | 2015/03/09 | 23:29 | 23:53 | 00:12 | |
| 4 | M7.43 | 2015/03/10 | 03:19 | 03:24 | 03:28 | |
| 5 | M6.5 | 2015/03/09 | 14:22 | 14:33 | 14:37 | |
| 6 | M6.08 | 2015/03/12 | 13:50 | 14:08 | 14:13 | |
| 7 | M4.69 | 2015/03/12 | 04:41 | 04:46 | 04:50 | |
| 8 | M4.44 | 2015/03/06 | 04:14 | 04:57 | 05:27 | |
| 9 | M4.16 | 2015/03/11 | 23:46 | 00:02 | 00:06 | |
| 10 | M3.96 | 2015/03/12 | 21:44 | 21:51 | 21:56 |
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| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/21 | M1.3 |
| Last geomagnetic storm | 2025/12/22 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 114.8 +23 |
| Last 30 days | 109.3 +22.9 |