Sunspot region AR11542
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2012/08/07 | 2 | 20 | HAX | S13E75 | |
| 2012/08/08 | 6 | 140 | CSO | S14E62 | |
| 2012/08/09 | 9 | 160 | DAI | S14E50 | |
| 2012/08/10 | 14 | 190 | DAI | S14E37 | |
| 2012/08/11 | 10 | 130 | DAI | S16E24 | |
| 2012/08/12 | 7 | 110 | DAO | S14E08 | |
| 2012/08/13 | 6 | 60 | DAO | S13W04 | |
| 2012/08/14 | 4 | 40 | DAO | S12W18 | |
| 2012/08/15 | 4 | 40 | CAO | S12W33 | |
| 2012/08/16 | 3 | 10 | BXO | S14W46 | |
| 2012/08/17 | 1 | 0 | AXX | S11W62 |
| B | C | M |
|---|---|---|
| 3 | 37 | 3 |
The top 10 solar flares from sunspot region 11542
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M2.33 | 2012/08/06 | 04:33 | 04:38 | 04:41 | |
| 2 | M1.35 | 2012/08/06 | 00:39 | 00:45 | 00:48 | |
| 3 | M1.22 | 2012/08/09 | 11:36 | 11:47 | 12:00 | |
| 4 | C9.04 | 2012/08/06 | 08:10 | 08:17 | 08:21 | |
| 5 | C7.12 | 2012/08/08 | 11:17 | 11:32 | 11:42 | |
| 6 | C6.07 | 2012/08/10 | 04:07 | 04:16 | 04:45 | |
| 7 | C5.9 | 2012/08/07 | 13:22 | 13:30 | 13:34 | |
| 8 | C4.42 | 2012/08/07 | 18:38 | 18:50 | 18:54 | |
| 9 | C4.16 | 2012/08/06 | 16:51 | 16:56 | 17:01 | |
| 10 | C3.44 | 2012/08/10 | 04:58 | 05:02 | 05:05 |
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
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Space weather facts
| Last X-flare | 2026/03/30 | X1.4 |
| Last M-flare | 2026/03/28 | M1.3 |
| Last geomagnetic storm | 2026/03/25 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 86.6 +8.4 |
| Last 30 days | 86.6 +11.2 |
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