Sunspot region AR8476
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/03/01 | 9 | 10 | BXO | N20E19 | |
| 1999/03/02 | 6 | 20 | CRO | N19E07 | |
| 1999/03/03 | 15 | 70 | DSO | N18W10 | |
| 1999/03/04 | 21 | 150 | DSI | N18W23 | |
| 1999/03/05 | 18 | 200 | EKO | N18W35 | |
| 1999/03/06 | 24 | 340 | EAI | N18W49 | |
| 1999/03/07 | 19 | 330 | EAO | N17W62 | |
| 1999/03/08 | 9 | 250 | EAO | N17W74 | |
| 1999/03/09 | 4 | 150 | EAO | N18W91 |
| C |
|---|
| 4 |
The top 4 solar flares from sunspot region 8476
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C2.36 | 1999/03/02 | 13:22 | 13:30 | 13:35 | |
| 2 | C2.26 | 1999/03/03 | 05:58 | 06:02 | 06:04 | |
| 3 | C1.66 | 1999/03/03 | 16:49 | 16:54 | 17:05 | |
| 4 | C1.1 | 1999/03/03 | 07:47 | 07:50 | 07:52 |
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| 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 | |
|---|---|
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| April 2026 | 118.8 +32.8 |
| Last 30 days | 102.1 +47 |
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