Sunspot region AR8470
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/02/23 | 4 | 10 | BXO | S23E72 | |
| 1999/02/24 | 3 | 90 | DAO | S24E59 | |
| 1999/02/25 | 5 | 60 | DSO | S24E45 | |
| 1999/02/26 | 9 | 40 | CAO | S23E32 | |
| 1999/02/27 | 4 | 40 | CSO | S24E19 | |
| 1999/02/28 | 1 | 30 | HSX | S23E04 | |
| 1999/03/01 | 1 | 10 | HSX | S23W10 |
| B |
|---|
| 1 |
The top 1 solar flares from sunspot region 8470
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | B5.21 | 1999/02/26 | 07:46 | 07:50 | 07:56 |
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| Last X-flare | 2024/05/15 | X2.9 |
| Last M-flare | 2024/05/16 | M1.0 |
| Last geomagnetic storm | 2024/05/16 | Kp6 (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2024 | 136.5 +31.6 |
| May 2024 | 156.6 +20.1 |
| Last 30 days | 177 +70.8 |