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
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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
Monday, 30 March 2026
X1.5 solar flare
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
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Space weather facts
| Last X-flare | 2026/04/24 | X2.5 |
| Last M-flare | 2026/05/10 | M5.7 |
| Last geomagnetic storm | 2026/05/05 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (2%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2026 | 79.3 -6.6 |
| May 2026 | 103.1 +23.8 |
| Last 30 days | 95.2 +0.9 |
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