Sunspot region AR11161
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2011/02/15 | 3 | 30 | BXO | N11E52 | |
| 2011/02/16 | 13 | 130 | DAI | N11E38 | |
| 2011/02/17 | 9 | 120 | DHI | N13E25 | |
| 2011/02/18 | 14 | 140 | EAC | N12E13 | |
| 2011/02/19 | 28 | 200 | EAI | N12W02 | |
| 2011/02/20 | 19 | 250 | EKC | N11W15 | |
| 2011/02/21 | 39 | 260 | EKC | N11W28 | |
| 2011/02/22 | 25 | 220 | EKC | N11W42 | |
| 2011/02/23 | 11 | 250 | EAO | N11W56 | |
| 2011/02/24 | 4 | 130 | DSO | N11W69 | |
| 2011/02/25 | 1 | 60 | HAX | N11W87 |
| B | C | M |
|---|---|---|
| 11 | 8 | 1 |
The top 10 solar flares from sunspot region 11161
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.65 | 2011/02/16 | 07:35 | 07:44 | 07:55 | |
| 2 | C5.76 | 2011/02/18 | 04:44 | 04:51 | 05:01 | |
| 3 | C4.95 | 2011/02/19 | 02:56 | 03:03 | 03:11 | |
| 4 | C2.9 | 2011/02/18 | 03:20 | 03:34 | 03:40 | |
| 5 | C2.45 | 2011/02/20 | 03:54 | 03:57 | 03:59 | |
| 6 | C2.11 | 2011/02/21 | 18:25 | 18:35 | 18:47 | |
| 7 | C1.75 | 2011/02/23 | 12:15 | 12:23 | 12:29 | |
| 8 | C1.69 | 2011/02/20 | 00:50 | 01:23 | 02:05 | |
| 9 | C1.25 | 2011/02/21 | 01:41 | 01:46 | 01:50 | |
| 10 | B9.6 | 2011/02/20 | 19:40 | 19:52 | 20:02 |
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 | M7.3 |
| 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 | 114 -10 |
| Last 30 days | 118.1 +6.2 |