Sunspot region AR8280
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1998/07/22 | 1 | 130 | HKX | S21E75 | |
| 1998/07/23 | 8 | 340 | EKO | S21E63 | |
| 1998/07/24 | 13 | 500 | EKI | S21E54 | |
| 1998/07/25 | 10 | 510 | EHO | S23E40 | |
| 1998/07/26 | 13 | 430 | DHO | S23E27 | |
| 1998/07/27 | 13 | 450 | EHO | S24E14 | |
| 1998/07/28 | 10 | 380 | DHO | S24E02 | |
| 1998/07/29 | 8 | 300 | DHO | S23W11 | |
| 1998/07/30 | 8 | 340 | CHO | S23W24 | |
| 1998/07/31 | 1 | 310 | HHX | S22W41 | |
| 1998/08/01 | 1 | 340 | HHX | S23W54 | |
| 1998/08/02 | 1 | 340 | HHX | S25W68 | |
| 1998/08/03 | 1 | 220 | HHX | S24W81 | |
| 1998/08/04 | 1 | 100 | HSX | S20W97 |
| B | C | M |
|---|---|---|
| 2 | 2 | 1 |
The top 5 solar flares from sunspot region 8280
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.07 | 1998/07/24 | 03:11 | 03:38 | 03:58 | |
| 2 | C2.01 | 1998/07/22 | 16:49 | 16:52 | 16:55 | |
| 3 | C1.89 | 1998/07/23 | 15:58 | 16:05 | 16:12 | |
| 4 | B9.27 | 1998/07/26 | 06:16 | 06:20 | 06:22 | |
| 5 | B7.2 | 1998/07/26 | 12:34 | 12:39 | 12:46 |
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| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/04 | M1.7 |
| Last geomagnetic storm | 2026/04/03 | Kp7- (G3) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
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| Last 30 days | 96.1 +32 |
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