Sunspot region AR13645
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2024/04/17 | 8 | 30 | CAI | S10E24 | |
| 2024/04/18 | 12 | 140 | DAI | S08E08 | |
| 2024/04/19 | 16 | 210 | DAI | S09W04 | |
| 2024/04/20 | 18 | 240 | DAI | S08W19 | |
| 2024/04/21 | 20 | 290 | DKI | S09W35 | |
| 2024/04/22 | 18 | 260 | DKC | S09W47 | |
| 2024/04/23 | 17 | 250 | DKC | S08W61 | |
| 2024/04/24 | 15 | 260 | DKC | S08W71 | |
| 2024/04/25 | 12 | 220 | DAI | S08W84 | |
| 2024/04/26 | 12 | 220 | DAI | S08W98 |
2024/04/17
2024/04/18
2024/04/19
2024/04/20
2024/04/21
2024/04/22
2024/04/23
2024/04/24
2024/04/25
2024/04/26
|
2024/04/17
2024/04/18
2024/04/19
2024/04/20
2024/04/21
2024/04/22
2024/04/23
2024/04/24
2024/04/25
2024/04/26
|
| C | M |
|---|---|
| 20 | 8 |
The top 10 solar flares from sunspot region 13645
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.6 | 2024/04/22 | 13:13 | 13:35 | 14:17 | |
| 2 | M1.4 | 2024/04/24 | 12:07 | 12:14 | 12:38 | |
| 3 | M1.1 | 2024/04/16 | 17:49 | 18:02 | 18:14 | |
| 4 | M1.1 | 2024/04/22 | 14:46 | 14:55 | 15:08 | |
| 5 | M1.0 | 2024/04/21 | 12:39 | 12:59 | 13:35 | |
| 6 | M1.0 | 2024/04/22 | 07:58 | 08:13 | 08:30 | |
| 7 | M1.0 | 2024/04/22 | 22:59 | 23:18 | 23:38 | |
| 8 | M1.0 | 2024/04/25 | 01:40 | 01:49 | 02:01 | |
| 9 | C9.7 | 2024/04/18 | 16:16 | 16:46 | 17:02 | |
| 10 | C8.7 | 2024/04/18 | 11:44 | 11:51 | 11:56 |
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Space weather facts
| Last X-flare | 2026/01/18 | X1.9 |
| Last M-flare | 2026/01/21 | M3.4 |
| Last geomagnetic storm | 2026/01/22 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 119.6 -4.4 |
| Last 30 days | 122.3 +11.2 |