Sunspot region AR13643
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2024/04/15 | 8 | 100 | DAI | S10E63 | |
| 2024/04/16 | 6 | 100 | DAI | S10E49 | |
| 2024/04/17 | 20 | 130 | FAI | S13E34 | |
| 2024/04/18 | 29 | 160 | DAI | S12E18 | |
| 2024/04/19 | 18 | 130 | DAI | S13E09 | |
| 2024/04/20 | 12 | 90 | CRO | S13W06 | |
| 2024/04/21 | 10 | 80 | CRO | S11W08 | |
| 2024/04/22 | 7 | 20 | CRO | S13W32 | |
| 2024/04/23 | 6 | 10 | BXO | S13W45 | |
| 2024/04/24 | 16 | 240 | EAC | S13W57 | |
| 2024/04/25 | 5 | 20 | CAO | S12W72 |
2024/04/15
2024/04/16
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
|
2024/04/15
2024/04/16
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
|
| C | M |
|---|---|
| 6 | 2 |
The top 8 solar flares from sunspot region 13643
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.6 | 2024/04/17 | 21:55 | 22:08 | 22:17 | |
| 2 | M1.3 | 2024/04/18 | 07:17 | 07:37 | 08:09 | |
| 3 | C8.8 | 2024/04/17 | 20:00 | 20:04 | 20:12 | |
| 4 | C4.4 | 2024/04/15 | 02:51 | 03:09 | 03:22 | |
| 5 | C3.9 | 2024/04/16 | 10:06 | 10:15 | 10:24 | |
| 6 | C3.4 | 2024/04/17 | 13:39 | 13:48 | 13:55 | |
| 7 | C2.8 | 2024/04/25 | 08:10 | 08:14 | 08:18 | |
| 8 | C2.6 | 2024/04/20 | 03:33 | 03:39 | 03:47 |
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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 | 119.1 -4.9 |
| Last 30 days | 122.3 +12.7 |