Sunspot region AR10173
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2002/10/29 | 3 | 50 | CSO | S17W69 | |
| 2002/10/30 | 4 | 100 | CSO | S18W82 | |
| 2002/10/31 | 2 | 30 | DAO | S15W92 |
| C |
|---|
| 2 |
The top 2 solar flares from sunspot region 10173
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C2.43 | 2002/10/29 | 14:45 | 14:48 | 14:53 | |
| 2 | C1.69 | 2002/10/28 | 23:21 | 23:27 | 23:35 |
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Space weather facts
| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/06 | M8.1 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 167.7 +75.9 |
| Last 30 days | 107.1 +13.7 |