Sunspot region AR9870
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2002/03/12 | 3 | 130 | DSO | S17E62 | |
| 2002/03/13 | 6 | 120 | ESO | S18E51 | |
| 2002/03/14 | 4 | 120 | EAO | S20E37 | |
| 2002/03/15 | 6 | 120 | CAO | S20E24 | |
| 2002/03/16 | 4 | 90 | CSO | S19E06 | |
| 2002/03/17 | 2 | 100 | HSX | S20W07 | |
| 2002/03/18 | 1 | 120 | HAX | S20W20 | |
| 2002/03/19 | 11 | 90 | CAO | S20W35 | |
| 2002/03/20 | 8 | 80 | CAO | S20W47 | |
| 2002/03/21 | 6 | 80 | CSO | S21W61 | |
| 2002/03/22 | 3 | 50 | CAO | S20W73 | |
| 2002/03/23 | 1 | 90 | HSX | S20W90 |
| C |
|---|
| 3 |
The top 3 solar flares from sunspot region 9870
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C8.89 | 2002/03/18 | 11:40 | 11:47 | 11:53 | |
| 2 | C8.23 | 2002/03/21 | 23:46 | 00:23 | 00:46 | |
| 3 | C5.25 | 2002/03/18 | 16:46 | 16:52 | 16:58 |
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Space weather facts
| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/04 | M6.0 |
| 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 | 175.4 +83.6 |
| Last 30 days | 107.3 +14.6 |