Sunspot region AR13405
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2023/08/14 | 1 | 120 | HSX | N11E75 | |
| 2023/08/15 | 3 | 160 | DSO | N10E65 | |
| 2023/08/16 | 5 | 180 | FSO | N08E50 | |
| 2023/08/17 | 4 | 160 | ESO | N08E35 | |
| 2023/08/18 | 6 | 140 | ESO | N10E25 | |
| 2023/08/19 | 2 | 100 | CSO | N09E11 | |
| 2023/08/20 | 2 | 90 | CSO | N09W04 | |
| 2023/08/21 | 1 | 110 | HSX | N10W21 | |
| 2023/08/22 | 3 | 110 | CSO | N10W34 | |
| 2023/08/23 | 4 | 130 | HSX | N09W48 | |
| 2023/08/24 | 2 | 140 | HSX | N10W62 | |
| 2023/08/25 | 2 | 120 | CAO | N09W78 | |
| 2023/08/26 | 1 | 60 | HAX | N10W89 | |
| 2023/08/27 | 1 | 60 | HAX | N10W0* |
2023/08/14
2023/08/15
2023/08/16
2023/08/17
2023/08/18
2023/08/19
2023/08/20
2023/08/21
2023/08/22
2023/08/23
2023/08/24
2023/08/25
2023/08/26
2023/08/27
|
2023/08/14
2023/08/15
2023/08/16
2023/08/17
2023/08/18
2023/08/19
2023/08/20
2023/08/21
2023/08/22
2023/08/23
2023/08/24
2023/08/25
2023/08/26
2023/08/27
|
| B | C | M |
|---|---|---|
| 2 | 21 | 1 |
The top 10 solar flares from sunspot region 13405
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.1 | 2023/08/22 | 22:35 | 23:04 | 23:38 | |
| 2 | C8.9 | 2023/08/14 | 20:30 | 21:10 | 21:38 | |
| 3 | C7.1 | 2023/08/22 | 23:38 | 23:41 | 23:45 | |
| 4 | C5.0 | 2023/08/25 | 15:40 | 15:49 | 15:53 | |
| 5 | C4.1 | 2023/08/24 | 21:50 | 22:14 | 22:31 | |
| 6 | C3.9 | 2023/08/23 | 13:54 | 14:07 | 14:12 | |
| 7 | C3.1 | 2023/08/18 | 02:40 | 02:52 | 03:03 | |
| 8 | C2.9 | 2023/08/15 | 11:25 | 11:33 | 11:41 | |
| 9 | C2.6 | 2023/08/26 | 21:41 | 21:50 | 21:55 | |
| 10 | C2.3 | 2023/08/15 | 21:42 | 21:52 | 22:11 |
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
Late 2026/04/01 Filament CME 84AR4409 128Space Weather Memes 814Comet C/2026 A1 (MAPS) for the southern hemisphere 38AR4403 39
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Space weather facts
| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/04 | M7.6 |
| Last geomagnetic storm | 2026/04/03 | Kp7- (G3) |
| 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 | 141 +55.1 |
| Last 30 days | 95.4 +31.2 |
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