Sunspot region AR8628
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/07/10 | 3 | 30 | CRO | N18E52 | |
| 1999/07/11 | 7 | 20 | CRO | N19E36 | |
| 1999/07/12 | 20 | 170 | EAO | N18E20 | |
| 1999/07/13 | 21 | 210 | DAO | N17E04 | |
| 1999/07/14 | 22 | 220 | DAO | N17W09 | |
| 1999/07/15 | 16 | 150 | DAO | N18W22 | |
| 1999/07/16 | 19 | 140 | EAO | N18W35 | |
| 1999/07/17 | 14 | 140 | EAO | N18W48 | |
| 1999/07/18 | 11 | 100 | DAO | N19W62 | |
| 1999/07/19 | 6 | 100 | DAO | N18W76 | |
| 1999/07/20 | 2 | 70 | DSO | N20W88 |
| C |
|---|
| 3 |
The top 3 solar flares from sunspot region 8628
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C2.23 | 1999/07/12 | 03:33 | 03:37 | 03:41 | |
| 2 | C2.21 | 1999/07/12 | 19:42 | 19:47 | 19:56 | |
| 3 | C1.74 | 1999/07/11 | 05:59 | 06:03 | 06:06 |
Latest news
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Latest forum messages
Do the high-resolution sunspot counts point to more complex sunspots? 58AR4362 23AR4366 1003Feb 8-9 CMEs 22Incoming & Unnumbered Active Regions 155
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| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
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