Sunspot region AR8732
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/10/13 | 5 | 30 | BXO | N20E43 | |
| 1999/10/14 | 10 | 230 | DSO | N19E28 | |
| 1999/10/15 | 21 | 90 | DAO | N20E16 | |
| 1999/10/16 | 12 | 170 | ESO | N20E01 | |
| 1999/10/17 | 19 | 210 | EAO | N20W12 | |
| 1999/10/18 | 23 | 220 | EAO | N21W25 | |
| 1999/10/19 | 19 | 180 | FAO | N21W41 | |
| 1999/10/20 | 29 | 190 | FAI | N21W53 | |
| 1999/10/21 | 23 | 170 | FAI | N22W64 | |
| 1999/10/22 | 15 | 160 | FAI | N21W76 | |
| 1999/10/23 | 7 | 60 | CRI | N20W89 |
| C |
|---|
| 11 |
The top 10 solar flares from sunspot region 8732
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C6.9 | 1999/10/22 | 09:10 | 09:16 | 09:29 | |
| 2 | C6.04 | 1999/10/21 | 23:48 | 00:20 | 00:38 | |
| 3 | C4.87 | 1999/10/22 | 14:04 | 14:07 | 14:13 | |
| 4 | C4.46 | 1999/10/19 | 20:21 | 20:25 | 20:28 | |
| 5 | C4.44 | 1999/10/19 | 06:58 | 07:03 | 07:14 | |
| 6 | C4.39 | 1999/10/19 | 09:11 | 09:18 | 09:20 | |
| 7 | C3.61 | 1999/10/19 | 10:34 | 10:40 | 10:49 | |
| 8 | C3.43 | 1999/10/21 | 08:41 | 08:52 | 09:07 | |
| 9 | C3.29 | 1999/10/21 | 14:46 | 14:54 | 15:07 | |
| 10 | C2.67 | 1999/10/18 | 21:49 | 21:55 | 22:03 |
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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 | 186 +94.2 |
| Last 30 days | 106.3 +12.6 |