Sunspot region AR13728
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2024/06/25 | 4 | 10 | BXO | S25E55 | |
| 2024/06/26 | 2 | 10 | BXO | S27E42 | |
| 2024/06/27 | 4 | 30 | CAO | S27E28 | |
| 2024/06/28 | 5 | 100 | DSO | S27E17 | |
| 2024/06/29 | 7 | 80 | DAO | S27E03 | |
| 2024/06/30 | 5 | 60 | DAO | S27W10 | |
| 2024/07/01 | 3 | 30 | CAO | S27W22 | |
| 2024/07/02 | 2 | 20 | HRX | S27W38 |
2024/06/25
2024/06/26
2024/06/27
2024/06/28
2024/06/29
2024/06/30
2024/07/01
2024/07/02
|
2024/06/25
2024/06/26
2024/06/27
2024/06/28
2024/06/29
2024/06/30
2024/07/01
2024/07/02
|
| C |
|---|
| 4 |
The top 4 solar flares from sunspot region 13728
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C3.6 | 2024/06/28 | 02:23 | 02:27 | 02:31 | |
| 2 | C2.4 | 2024/06/27 | 19:46 | 19:54 | 20:10 | |
| 3 | C2.3 | 2024/06/28 | 11:35 | 11:42 | 11:47 | |
| 4 | C2.3 | 2024/06/29 | 13:08 | 13:13 | 13:22 |
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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 |