Sunspot region AR12818
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2021/04/20 | 1 | 90 | HSX | S17E66 | |
| 2021/04/21 | 1 | 40 | HSX | S17E52 | |
| 2021/04/22 | 1 | 50 | HSX | S17E39 | |
| 2021/04/23 | 1 | 50 | HSX | S17E25 | |
| 2021/04/24 | 1 | 40 | HSX | S16E10 | |
| 2021/04/25 | 1 | 40 | HSX | S16W01 | |
| 2021/04/26 | 1 | 40 | HSX | S16W14 | |
| 2021/04/27 | 1 | 10 | HSX | S17W27 | |
| 2021/04/28 | 1 | 10 | HSX | S17W41 | |
| 2021/04/29 | 1 | 20 | HSX | S15W52 | |
| 2021/04/30 | 1 | 20 | HSX | S16W67 | |
| 2021/05/01 | 1 | 10 | AXX | S15W78 |
2021/04/20
2021/04/21
2021/04/22
2021/04/23
2021/04/24
2021/04/25
2021/04/26
2021/04/27
2021/04/28
2021/04/29
2021/04/30
2021/05/01
|
2021/04/20
2021/04/21
2021/04/22
2021/04/23
2021/04/24
2021/04/25
2021/04/26
2021/04/27
2021/04/28
2021/04/29
2021/04/30
2021/05/01
|
| B |
|---|
| 2 |
The top 2 solar flares from sunspot region 12818
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | B1.9 | 2021/04/30 | 04:04 | 04:17 | 04:33 | |
| 2 | B1.4 | 2021/04/30 | 04:48 | 04:55 | 05:02 |
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Space weather facts
| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/08 | M2.0 |
| 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 | 162.7 +70.9 |
| Last 30 days | 108 +13.3 |