Sunspot region AR12873
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2021/09/20 | 8 | 10 | BXI | N26W07 | |
| 2021/09/21 | 8 | 110 | DAO | N25W23 | |
| 2021/09/22 | 5 | 80 | DAO | N25W35 | |
| 2021/09/23 | 6 | 10 | BXO | N26W48 | |
| 2021/09/24 | 2 | 10 | BXO | N25W61 | |
| 2021/09/25 | 2 | 10 | BXO | N25W73 |
2021/09/20
2021/09/21
2021/09/22
2021/09/23
2021/09/24
2021/09/25
|
2021/09/20
2021/09/21
2021/09/22
2021/09/23
2021/09/24
2021/09/25
|
| B | C |
|---|---|
| 4 | 3 |
The top 7 solar flares from sunspot region 12873
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C1.8 | 2021/09/21 | 11:43 | 11:53 | 11:57 | |
| 2 | C1.1 | 2021/09/21 | 08:53 | 09:03 | 09:16 | |
| 3 | C1.0 | 2021/09/26 | 06:25 | 06:31 | 06:38 | |
| 4 | B8.9 | 2021/09/21 | 10:06 | 10:16 | 10:21 | |
| 5 | B5.2 | 2021/09/21 | 11:06 | 11:11 | 11:16 | |
| 6 | B2.3 | 2021/09/21 | 06:44 | 06:49 | 06:54 | |
| 7 | B1.6 | 2021/09/21 | 14:17 | 14:29 | 14:34 |
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Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/01 | M2.4 |
| Last geomagnetic storm | 2025/03/27 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2025 | 154.6 +17.6 |
| April 2025 | 147 -7.6 |
| Last 30 days | 128.8 -21.8 |