Sunspot region AR8484
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/03/09 | 1 | 100 | HHX | S22E76 | |
| 1999/03/10 | 2 | 190 | DAO | S24E64 | |
| 1999/03/11 | 5 | 140 | DAO | S23E54 | |
| 1999/03/12 | 9 | 120 | DAO | S23E41 | |
| 1999/03/13 | 8 | 90 | DSO | S22E30 | |
| 1999/03/14 | 11 | 70 | DSO | S23E18 | |
| 1999/03/15 | 10 | 60 | DSO | S24E05 | |
| 1999/03/16 | 7 | 40 | CSO | S23W08 | |
| 1999/03/17 | 6 | 40 | CSO | S23W21 | |
| 1999/03/18 | 4 | 20 | CSO | S23W34 | |
| 1999/03/19 | 3 | 10 | BXO | S23W46 | |
| 1999/03/20 | 1 | 10 | AXX | S23W59 | |
| 1999/03/21 | 1 | 0 | AXX | S25W71 |
| C | M |
|---|---|
| 2 | 1 |
The top 3 solar flares from sunspot region 8484
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M3.73 | 1999/03/08 | 06:30 | 06:37 | 06:43 | |
| 2 | C4.7 | 1999/03/09 | 22:45 | 22:57 | 23:03 | |
| 3 | C1.6 | 1999/03/09 | 20:04 | 20:10 | 20:15 |
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| 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 |