| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2002/09/17 | 8 | 40 | CAO | S14E32 | |
| 2002/09/18 | 10 | 90 | DAO | S14E17 | |
| 2002/09/19 | 16 | 220 | DAI | S14E04 | |
| 2002/09/20 | 18 | 380 | DKI | S14W10 | |
| 2002/09/21 | 27 | 500 | DKC | S14W24 | |
| 2002/09/22 | 31 | 670 | DKC | S14W36 | |
| 2002/09/23 | 33 | 650 | EKI | S14W49 | |
| 2002/09/24 | 12 | 720 | EKI | S14W59 | |
| 2002/09/25 | 11 | 430 | EKI | S13W76 | |
| 2002/09/26 | 12 | 420 | EKI | S13W88 |
| C | M |
|---|---|
| 16 | 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.27 | 2002/09/17 | 09:17 | 09:21 | 09:24 | |
| 2 | C7.26 | 2002/09/16 | 19:50 | 20:04 | 20:18 | |
| 3 | C6.9 | 2002/09/18 | 02:07 | 02:22 | 02:39 | |
| 4 | C6.67 | 2002/09/16 | 15:46 | 15:56 | 16:02 | |
| 5 | C6.17 | 2002/09/17 | 10:36 | 10:50 | 10:58 | |
| 6 | C5.3 | 2002/09/19 | 08:07 | 08:16 | 08:25 | |
| 7 | C4.53 | 2002/09/18 | 10:13 | 10:30 | 10:46 | |
| 8 | C4.5 | 2002/09/24 | 15:55 | 16:02 | 16:06 | |
| 9 | C4.03 | 2002/09/18 | 23:57 | 00:12 | 00:26 | |
| 10 | C4 | 2002/09/17 | 17:35 | 17:41 | 17:48 |
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| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/12 | M1.1 |
| Last geomagnetic storm | 2025/12/12 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 128 +36.2 |
| Last 30 days | 108.4 +15.8 |