Sunspot region AR12804
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2021/02/22 | 3 | 30 | CRO | N20W05 | |
| 2021/02/23 | 5 | 50 | CSO | N19W18 | |
| 2021/02/24 | 10 | 120 | DAI | N18W33 | |
| 2021/02/25 | 10 | 190 | DSI | N30W49 | |
| 2021/02/26 | 6 | 170 | DSI | N18W58 | |
| 2021/02/27 | 4 | 190 | DSO | N23W74 | |
| 2021/02/28 | 3 | 120 | DSO | N18W87 | |
| 2021/03/01 | 3 | 120 | DSO | N18W0* |
2021/02/22
2021/02/23
2021/02/24
2021/02/25
2021/02/26
2021/02/27
2021/02/28
2021/03/01
|
2021/02/22
2021/02/23
2021/02/24
2021/02/25
2021/02/26
2021/02/27
2021/02/28
2021/03/01
|
| B | C |
|---|---|
| 41 | 2 |
The top 10 solar flares from sunspot region 12804
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C3.9 | 2021/02/28 | 06:38 | 06:46 | 06:51 | |
| 2 | C2.7 | 2021/02/27 | 17:51 | 18:00 | 18:05 | |
| 3 | B5.4 | 2021/02/22 | 21:19 | 21:29 | 21:36 | |
| 4 | B4.6 | 2021/02/25 | 06:28 | 06:37 | 06:43 | |
| 5 | B4.5 | 2021/02/22 | 17:02 | 17:07 | 17:13 | |
| 6 | B3.7 | 2021/02/25 | 14:07 | 14:16 | 14:21 | |
| 7 | B3.4 | 2021/02/25 | 00:42 | 00:52 | 00:56 | |
| 8 | B3.3 | 2021/02/23 | 00:11 | 00:16 | 00:23 | |
| 9 | B2.7 | 2021/02/25 | 03:08 | 03:22 | 03:35 | |
| 10 | B2.6 | 2021/02/24 | 11:01 | 11:23 | 11:32 |
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Space weather facts
| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/04 | M6.0 |
| 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 | 186 +94.2 |
| Last 30 days | 106.3 +12.6 |