| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2004/12/11 | 4 | 20 | DSO | N13W20 | |
| 2004/12/12 | 6 | 50 | DAO | N13W34 | |
| 2004/12/13 | 16 | 100 | DAO | N13W47 | |
| 2004/12/14 | 12 | 120 | DAI | N13W60 | |
| 2004/12/15 | 8 | 130 | DSO | N13W74 | |
| 2004/12/16 | 4 | 150 | DAO | N13W88 |
| B |
|---|
| 21 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | B8.37 | 2004/12/11 | 20:14 | 21:22 | 21:48 | |
| 2 | B5.47 | 2004/12/16 | 09:45 | 09:49 | 09:54 | |
| 3 | B4.95 | 2004/12/12 | 22:33 | 22:38 | 22:43 | |
| 4 | B4.56 | 2004/12/15 | 05:07 | 05:28 | 05:33 | |
| 5 | B4.53 | 2004/12/13 | 17:01 | 17:24 | 17:30 | |
| 6 | B4.38 | 2004/12/14 | 08:15 | 08:20 | 08:24 | |
| 7 | B4.04 | 2004/12/13 | 16:23 | 16:30 | 16:39 | |
| 8 | B3.72 | 2004/12/12 | 21:56 | 22:05 | 22:19 | |
| 9 | B3.66 | 2004/12/14 | 01:03 | 01:11 | 01:13 | |
| 10 | B3.56 | 2004/12/12 | 23:25 | 23:29 | 23:31 |
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| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/29 | M1.0 |
| 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 | 116.5 +24.7 |
| Last 30 days | 116.2 +30.6 |