Sunspot region AR10431
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2003/08/10 | 6 | 110 | ESO | S12E68 | |
| 2003/08/11 | 16 | 250 | EAC | S13E56 | |
| 2003/08/12 | 29 | 160 | EAC | S13E43 | |
| 2003/08/13 | 31 | 130 | DAC | S13E30 | |
| 2003/08/14 | 39 | 500 | EKC | S13E17 | |
| 2003/08/15 | 46 | 500 | EKC | S13E03 | |
| 2003/08/16 | 40 | 470 | EAC | S11W13 | |
| 2003/08/17 | 35 | 400 | EAC | S12W26 | |
| 2003/08/18 | 41 | 360 | EAI | S10W38 | |
| 2003/08/19 | 40 | 180 | EAI | S10W52 | |
| 2003/08/20 | 12 | 180 | EAI | S11W67 | |
| 2003/08/21 | 5 | 100 | CSO | S10W84 |
| B | C | M |
|---|---|---|
| 1 | 38 | 3 |
The top 10 solar flares from sunspot region 10431
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M3.97 | 2003/08/19 | 09:45 | 10:06 | 10:25 | |
| 2 | M2.99 | 2003/08/19 | 07:38 | 07:59 | 08:01 | |
| 3 | M1.1 | 2003/08/15 | 23:54 | 00:18 | 00:45 | |
| 4 | C9.78 | 2003/08/14 | 06:11 | 06:51 | 07:34 | |
| 5 | C7.12 | 2003/08/21 | 15:15 | 15:22 | 15:25 | |
| 6 | C6.6 | 2003/08/14 | 22:29 | 22:44 | 23:17 | |
| 7 | C4.43 | 2003/08/16 | 01:48 | 01:51 | 01:53 | |
| 8 | C4.32 | 2003/08/13 | 09:37 | 09:49 | 10:02 | |
| 9 | C3.56 | 2003/08/18 | 08:59 | 09:06 | 09:11 | |
| 10 | C3.35 | 2003/08/15 | 13:05 | 13:08 | 13:11 |
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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 | |
|---|---|
| March 2026 | 85.9 +7.7 |
| April 2026 | 85 -0.9 |
| Last 30 days | 90 +4.9 |
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