Sunspot region AR13531
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2023/12/20 | 1 | 60 | HAX | S20E68 | |
| 2023/12/21 | 1 | 70 | HSX | S21E55 | |
| 2023/12/22 | 1 | 80 | HSX | S20E43 | |
| 2023/12/23 | 1 | 90 | HAX | S20E30 | |
| 2023/12/24 | 2 | 120 | HAX | S20E16 | |
| 2023/12/25 | 3 | 160 | HAX | S20E03 | |
| 2023/12/26 | 7 | 200 | CSO | S19W10 | |
| 2023/12/27 | 2 | 150 | CSO | S19W23 | |
| 2023/12/28 | 2 | 90 | CSO | S19W34 | |
| 2023/12/29 | 2 | 210 | CSO | S20W53 | |
| 2023/12/30 | 1 | 200 | HSX | S21W67 | |
| 2023/12/31 | 1 | 160 | HSX | S19W77 | |
| 2024/01/01 | 1 | 60 | HSX | S19W94 | |
| 2024/01/02 | 1 | 60 | HSX | S19W0* |
2023/12/20
2023/12/21
2023/12/22
2023/12/23
2023/12/24
2023/12/25
2023/12/26
2023/12/27
2023/12/28
2023/12/29
2023/12/30
2023/12/31
2024/01/01
2024/01/02
|
2023/12/20
2023/12/21
2023/12/22
2023/12/23
2023/12/24
2023/12/25
2023/12/26
2023/12/27
2023/12/28
2023/12/29
2023/12/30
2023/12/31
2024/01/01
2024/01/02
|
| C |
|---|
| 2 |
The top 2 solar flares from sunspot region 13531
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C6.8 | 2023/12/20 | 17:08 | 17:27 | 17:41 | |
| 2 | C1.2 | 2023/12/31 | 02:38 | 02:47 | 03:04 |
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
AR4409 92Late 2026/04/01 Filament CME 16AR4405 238Comet C/2026 A1 (MAPS) for the southern hemisphere 37AR 4408 1
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Space weather facts
| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/03 | M1.3 |
| Last geomagnetic storm | 2026/04/02 | Kp6- (G2) |
| 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 | 94.6 +27 |
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