Sunspot region AR12257
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2015/01/07 | 3 | 40 | DAO | N05E12 | |
| 2015/01/08 | 13 | 100 | DAI | N05W01 | |
| 2015/01/09 | 19 | 170 | DAI | N05W16 | |
| 2015/01/10 | 28 | 480 | DKI | N07W29 | |
| 2015/01/11 | 35 | 470 | EKC | N07W42 | |
| 2015/01/12 | 24 | 450 | EKC | N07W55 | |
| 2015/01/13 | 16 | 380 | EKC | N07W68 | |
| 2015/01/14 | 6 | 240 | EAC | N07W81 | |
| 2015/01/15 | 3 | 120 | DAO | N07W93 | |
| 2015/01/16 | 3 | 120 | DAO | N07W0* |
2015/01/07
2015/01/08
2015/01/09
2015/01/10
2015/01/11
2015/01/12
2015/01/13
2015/01/14
2015/01/15
|
2015/01/07
2015/01/08
2015/01/09
2015/01/10
2015/01/11
2015/01/12
2015/01/13
2015/01/14
2015/01/15
|
| C | M |
|---|---|
| 17 | 6 |
The top 10 solar flares from sunspot region 12257
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M8.1 | 2015/01/13 | 04:13 | 04:24 | 04:38 | |
| 2 | M7.09 | 2015/01/13 | 04:46 | 04:58 | 05:10 | |
| 3 | M3.19 | 2015/01/14 | 12:30 | 12:58 | 13:08 | |
| 4 | M1.39 | 2015/01/14 | 03:34 | 03:47 | 03:54 | |
| 5 | M1.38 | 2015/01/09 | 08:04 | 08:17 | 08:34 | |
| 6 | M1.11 | 2015/01/14 | 04:44 | 04:56 | 05:05 | |
| 7 | C7.66 | 2015/01/14 | 09:17 | 09:43 | 09:52 | |
| 8 | C6.8 | 2015/01/14 | 02:25 | 02:33 | 02:40 | |
| 9 | C4.85 | 2015/01/11 | 08:14 | 09:24 | 10:25 | |
| 10 | C4.8 | 2015/01/10 | 11:14 | 11:33 | 11:54 |
Latest news
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Latest forum messages
Filament CME from march 22nd 11Solar Transit, Artifacts, or Radiation 87CMes from ar 4392 (19-21st of march) 264Incoming & Unnumbered Active Regions 232Growth of Cycle 25 993
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/18 | M2.7 |
| Last geomagnetic storm | 2026/03/23 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (4%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 77.7 -0.5 |
| Last 30 days | 72.3 -15.7 |