Sunspot region AR8547
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/05/16 | 7 | 20 | BXO | N22W15 | |
| 1999/05/17 | 5 | 20 | CSO | N21W30 | |
| 1999/05/18 | 2 | 10 | BXO | N22W42 | |
| 1999/05/19 | 3 | 10 | BXO | N24W53 | |
| 1999/05/20 | 4 | 10 | BXO | N24W69 |
| C |
|---|
| 1 |
The top 1 solar flares from sunspot region 8547
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C1.14 | 1999/05/21 | 12:49 | 12:53 | 12:55 |
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Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/01 | M2.5 |
| Last geomagnetic storm | 2025/03/27 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 143 +8.8 |
| Last 30 days | 130.4 -16.1 |