Sunspot region AR12255
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2015/01/02 | 1 | 60 | HAX | S14E76 | |
| 2015/01/03 | 1 | 90 | HSX | S14E63 | |
| 2015/01/04 | 3 | 100 | CAO | S15E51 | |
| 2015/01/05 | 9 | 160 | DAI | S16E38 | |
| 2015/01/06 | 8 | 80 | DAI | S16E24 | |
| 2015/01/07 | 5 | 100 | DSO | S16E11 | |
| 2015/01/08 | 6 | 90 | CSO | S14W02 | |
| 2015/01/09 | 5 | 60 | HSX | S14W16 | |
| 2015/01/10 | 2 | 50 | HAX | S14W29 | |
| 2015/01/11 | 6 | 70 | DAO | S16W44 | |
| 2015/01/12 | 18 | 130 | EAO | S15W55 | |
| 2015/01/13 | 11 | 110 | EAO | S15W68 | |
| 2015/01/14 | 7 | 110 | DAO | S16W80 | |
| 2015/01/15 | 3 | 80 | CAO | S16W89 | |
| 2015/01/16 | 3 | 80 | CAO | S16W0* |
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| C | M |
|---|---|
| 3 | 1 |
The top 4 solar flares from sunspot region 12255
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.01 | 2015/01/12 | 14:08 | 14:44 | 15:10 | |
| 2 | C4.51 | 2015/01/12 | 07:42 | 07:51 | 07:56 | |
| 3 | C3.48 | 2015/01/15 | 14:49 | 14:59 | 15:09 | |
| 4 | C2.92 | 2015/01/12 | 12:40 | 12:43 | 12:45 |
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
Latest forum messages
CMEs from AR4420 (April 23th - 24th) 37AR4420 109Unspecified geomagnetic activity 158AR4419 136AR4425 3
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Space weather facts
| Last X-flare | 2026/04/24 | X2.5 |
| Last M-flare | 2026/04/24 | M6.5 |
| Last geomagnetic storm | 2026/04/20 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2026 | 85.9 +7.7 |
| April 2026 | 80 -5.9 |
| Last 30 days | 90 +13.5 |
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