Sunspot region AR9837
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2002/02/21 | 1 | 60 | HSX | N07E69 | |
| 2002/02/22 | 1 | 140 | HAX | N08E57 | |
| 2002/02/23 | 6 | 120 | CAO | N09E44 | |
| 2002/02/24 | 8 | 80 | DAO | N09E32 | |
| 2002/02/25 | 8 | 80 | DAO | N10E18 | |
| 2002/02/26 | 6 | 40 | DAO | N09E03 | |
| 2002/02/27 | 4 | 20 | DSO | N09W09 | |
| 2002/02/28 | 2 | 0 | AXX | N10W23 | |
| 2002/03/01 | 2 | 10 | AXX | N10W31 |
| C |
|---|
| 2 |
The top 2 solar flares from sunspot region 9837
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C4.15 | 2002/02/22 | 23:34 | 23:39 | 23:45 | |
| 2 | C3.37 | 2002/02/26 | 19:17 | 19:19 | 19:21 |
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
AR4366 605X1.9 CME 1357New satellites - Proba-3, PUNCH, SWFO-L1, GOES-U/19 70Do the high-resolution sunspot counts point to more complex sunspots? 45Anomalous sunspots on the sun ? 5
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| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
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