Sunspot region AR9921
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2002/04/24 | 1 | 0 | AXX | N12E41 | |
| 2002/04/28 | 5 | 30 | DAO | N13W13 | |
| 2002/04/29 | 5 | 50 | DSO | N14W27 | |
| 2002/04/30 | 2 | 10 | CRO | N14W41 |
| C |
|---|
| 1 |
The top 1 solar flares from sunspot region 9921
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C3.39 | 2002/05/01 | 03:39 | 03:43 | 03:46 |
Latest news
Monday, 30 March 2026
X1.5 solar flare
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
Latest forum messages
AR4416 13Planet-moon interactions and space weather 2Incoming & Unnumbered Active Regions 266Unspecified geomagnetic activity 151Filaments and prominences 543
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Space weather facts
| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/09 | M1.0 |
| 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 | |
|---|---|
| March 2026 | 85.9 +7.7 |
| April 2026 | 101.7 +15.8 |
| Last 30 days | 97.5 +41.1 |
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