Sunspot region AR8346
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1998/09/25 | 5 | 40 | CSO | S30E41 | |
| 1998/09/26 | 7 | 70 | CSO | S30E27 | |
| 1998/09/27 | 12 | 120 | DAO | S28E13 | |
| 1998/09/28 | 12 | 70 | ESO | S28E01 | |
| 1998/09/29 | 14 | 50 | ESO | S28W13 | |
| 1998/09/30 | 8 | 20 | CSO | S28W25 | |
| 1998/10/01 | 5 | 40 | DRO | S28W42 | |
| 1998/10/02 | 3 | 30 | DSO | S29W55 | |
| 1998/10/03 | 3 | 20 | BXO | S28W66 | |
| 1998/10/04 | 1 | 0 | AXX | S27W79 |
| B | C |
|---|---|
| 1 | 3 |
The top 4 solar flares from sunspot region 8346
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C8.59 | 1998/09/27 | 02:34 | 02:41 | 02:59 | |
| 2 | C3.87 | 1998/09/25 | 23:13 | 23:23 | 23:51 | |
| 3 | C1.38 | 1998/09/27 | 04:23 | 04:29 | 04:38 | |
| 4 | B6.4 | 1998/09/30 | 05:14 | 05:17 | 05:21 |
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50 mhz F2 46AR 13905 39AR13906 11Coronal mass ejection impact and G4 geomagnetic storm 10 & 11 October 2024 928Unspecified geomagnetic activity 1664
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| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
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