Sunspot region AR10639
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2004/06/29 | 4 | 70 | DAO | N13E60 | |
| 2004/06/30 | 8 | 150 | CAO | N13E46 | |
| 2004/07/01 | 7 | 100 | CAO | N09E31 | |
| 2004/07/02 | 4 | 50 | CSO | N10E19 | |
| 2004/07/03 | 8 | 90 | CAO | N09E06 | |
| 2004/07/04 | 4 | 60 | HSX | N08W10 | |
| 2004/07/05 | 10 | 40 | DAO | N09W20 | |
| 2004/07/06 | 5 | 20 | BXO | N08W35 | |
| 2004/07/07 | 6 | 10 | BXO | N09W51 | |
| 2004/07/08 | 6 | 20 | BXO | N10W64 |
| B | C |
|---|---|
| 11 | 1 |
The top 10 solar flares from sunspot region 10639
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C1.08 | 2004/06/29 | 18:10 | 18:25 | 18:40 | |
| 2 | B9.66 | 2004/06/29 | 14:13 | 14:20 | 14:24 | |
| 3 | B7.65 | 2004/06/28 | 23:15 | 23:20 | 23:24 | |
| 4 | B6.18 | 2004/06/28 | 19:28 | 19:32 | 19:35 | |
| 5 | B5.54 | 2004/07/07 | 02:11 | 02:17 | 02:22 | |
| 6 | B3.76 | 2004/06/29 | 11:02 | 11:22 | 11:46 | |
| 7 | B3.72 | 2004/07/05 | 15:50 | 15:54 | 15:57 | |
| 8 | B1.99 | 2004/07/08 | 06:02 | 06:06 | 06:10 | |
| 9 | B1.98 | 2004/07/05 | 20:47 | 20:54 | 20:59 | |
| 10 | B1.9 | 2004/06/29 | 20:08 | 20:12 | 20:17 |
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/02/25 | M2.4 |
| Last geomagnetic storm | 2026/02/22 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (5%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 74.6 -38 |
| Last 30 days | 79 -41.8 |