Sunspot region AR13928
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2024/12/19 | 4 | 80 | DAO | S14E60 | |
| 2024/12/20 | 6 | 150 | DAI | S17E49 | |
| 2024/12/21 | 10 | 180 | DAI | S17E34 | |
| 2024/12/22 | 18 | 260 | DKI | S13E20 | |
| 2024/12/23 | 18 | 260 | DKO | S12E06 | |
| 2024/12/24 | 20 | 280 | DKC | S14W07 | |
| 2024/12/25 | 26 | 280 | DKC | S14W22 | |
| 2024/12/26 | 16 | 200 | EAC | S14W36 | |
| 2024/12/27 | 17 | 120 | DAI | S14W49 | |
| 2024/12/28 | 6 | 100 | DAO | S14W64 | |
| 2024/12/29 | 1 | 10 | HRX | S15W75 | |
| 2024/12/30 | 1 | 10 | AXX | S14W89 | |
| 2024/12/31 | 1 | 10 | AXX | S14W0* |
2024/12/19
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2024/12/23
2024/12/24
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2024/12/26
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2024/12/28
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2024/12/30
2024/12/31
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2024/12/19
2024/12/20
2024/12/21
2024/12/22
2024/12/23
2024/12/24
2024/12/25
2024/12/26
2024/12/27
2024/12/28
2024/12/29
2024/12/30
2024/12/31
|
| C | M |
|---|---|
| 12 | 5 |
The top 10 solar flares from sunspot region 13928
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M3.81 | 2024/12/19 | 15:27 | 15:34 | 15:39 | |
| 2 | M2.5 | 2024/12/20 | 11:15 | 11:18 | 11:22 | |
| 3 | M1.7 | 2024/12/19 | 18:56 | 19:00 | 19:04 | |
| 4 | M1.2 | 2024/12/27 | 15:27 | 15:38 | 15:45 | |
| 5 | M1.0 | 2024/12/23 | 06:24 | 06:29 | 06:34 | |
| 6 | C9.4 | 2024/12/20 | 08:55 | 09:01 | 09:06 | |
| 7 | C7.6 | 2024/12/19 | 14:25 | 14:32 | 14:40 | |
| 8 | C7.1 | 2024/12/19 | 13:43 | 13:52 | 14:00 | |
| 9 | C6.6 | 2024/12/24 | 19:47 | 19:55 | 20:03 | |
| 10 | C5.9 | 2024/12/19 | 15:03 | 15:07 | 15:11 |
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Space weather facts
| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/04 | M6.0 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 175.4 +83.6 |
| Last 30 days | 107.3 +14.6 |