| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2013/05/22 | 3 | 120 | DSO | N10E62 | |
| 2013/05/23 | 7 | 250 | DSI | N10E52 | |
| 2013/05/24 | 9 | 290 | DHI | N11E40 | |
| 2013/05/25 | 12 | 220 | DAI | N11E26 | |
| 2013/05/26 | 12 | 220 | DAI | N11E12 | |
| 2013/05/27 | 19 | 180 | DAI | N12W00 | |
| 2013/05/28 | 16 | 110 | DAO | N12W13 | |
| 2013/05/29 | 10 | 70 | CSO | N11W29 | |
| 2013/05/30 | 10 | 70 | CSO | N11W29 | |
| 2013/05/31 | 1 | 10 | AXX | N12W59 |
| C | M |
|---|---|
| 8 | 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M2.53 | 2013/05/20 | 05:16 | 05:25 | 06:03 | |
| 2 | C3.06 | 2013/05/25 | 10:39 | 10:49 | 10:59 | |
| 3 | C1.98 | 2013/05/23 | 09:09 | 09:14 | 09:18 | |
| 4 | C1.93 | 2013/05/23 | 12:26 | 12:29 | 12:31 | |
| 5 | C1.78 | 2013/05/29 | 06:48 | 07:36 | 07:58 | |
| 6 | C1.51 | 2013/05/21 | 17:32 | 17:37 | 17:40 | |
| 7 | C1.45 | 2013/05/25 | 20:17 | 20:29 | 20:35 | |
| 8 | C1.34 | 2013/05/28 | 04:41 | 04:47 | 04:53 | |
| 9 | C1.18 | 2013/05/29 | 08:56 | 09:01 | 09:09 |
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| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/04 | M6.0 |
| 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 | 175.4 +83.6 |
| Last 30 days | 107.3 +14.6 |