Sunspot region AR10734
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2005/02/10 | 1 | 60 | HAX | S04E71 | |
| 2005/02/11 | 1 | 50 | HAX | S04E57 | |
| 2005/02/12 | 1 | 60 | HSX | S04E44 | |
| 2005/02/13 | 1 | 60 | HSX | S05E31 | |
| 2005/02/14 | 1 | 80 | HSX | S04E17 | |
| 2005/02/15 | 7 | 70 | CAO | S05E04 | |
| 2005/02/16 | 4 | 70 | CSO | S04W10 | |
| 2005/02/17 | 5 | 80 | CSO | S04W23 | |
| 2005/02/18 | 4 | 70 | CSO | S05W34 | |
| 2005/02/19 | 3 | 40 | DSO | S05W50 | |
| 2005/02/20 | 1 | 40 | HSX | S05W63 | |
| 2005/02/21 | 1 | 40 | HSX | S05W76 |
| B | C |
|---|---|
| 8 | 6 |
The top 10 solar flares from sunspot region 10734
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C7.11 | 2005/02/16 | 23:29 | 23:38 | 23:53 | |
| 2 | C2.79 | 2005/02/14 | 03:58 | 04:08 | 04:22 | |
| 3 | C2.49 | 2005/02/10 | 00:07 | 00:10 | 00:15 | |
| 4 | C2.07 | 2005/02/13 | 14:50 | 14:58 | 15:04 | |
| 5 | C1.51 | 2005/02/15 | 19:28 | 19:48 | 20:05 | |
| 6 | C1.44 | 2005/02/11 | 09:54 | 10:00 | 10:05 | |
| 7 | B9.35 | 2005/02/09 | 23:08 | 23:11 | 23:15 | |
| 8 | B8.76 | 2005/02/09 | 21:35 | 21:38 | 21:40 | |
| 9 | B8.23 | 2005/02/15 | 04:11 | 04:18 | 05:00 | |
| 10 | B8.03 | 2005/02/13 | 17:24 | 17:29 | 17:33 |
Latest news
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Latest forum messages
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Space weather facts
| Last X-flare | 2026/02/03 | X1.5 |
| Last M-flare | 2026/02/03 | M3.4 |
| Last geomagnetic storm | 2026/01/28 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| February 2026 | 133 +9 |
| Last 30 days | 120.6 +10.9 |