Sunspot region AR8485
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/03/09 | 4 | 30 | BXO | N22E66 | |
| 1999/03/10 | 11 | 200 | CAO | N22E53 | |
| 1999/03/11 | 15 | 250 | EAO | N22E40 | |
| 1999/03/12 | 22 | 290 | EAO | N22E27 | |
| 1999/03/13 | 25 | 310 | EAI | N23E13 | |
| 1999/03/14 | 38 | 420 | EKO | N23E00 | |
| 1999/03/15 | 46 | 520 | FHC | N23W12 | |
| 1999/03/16 | 58 | 560 | FKI | N23W25 | |
| 1999/03/17 | 50 | 610 | FKI | N23W38 | |
| 1999/03/18 | 36 | 570 | FAI | N24W52 | |
| 1999/03/19 | 20 | 360 | FAO | N24W64 | |
| 1999/03/20 | 8 | 200 | EAO | N22W79 |
| C | M |
|---|---|
| 32 | 5 |
The top 10 solar flares from sunspot region 8485
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M8.97 | 1999/03/16 | 21:34 | 21:41 | 21:46 | |
| 2 | M4.79 | 1999/03/18 | 08:25 | 08:31 | 08:35 | |
| 3 | M4.71 | 1999/03/17 | 09:50 | 09:56 | 10:05 | |
| 4 | M2.41 | 1999/03/16 | 06:18 | 06:35 | 06:56 | |
| 5 | M1.71 | 1999/03/17 | 14:42 | 14:49 | 14:58 | |
| 6 | C7.59 | 1999/03/18 | 14:08 | 14:22 | 14:38 | |
| 7 | C6.67 | 1999/03/16 | 18:22 | 18:29 | 18:39 | |
| 8 | C5.91 | 1999/03/16 | 09:32 | 09:42 | 09:59 | |
| 9 | C5.3 | 1999/03/16 | 13:21 | 13:29 | 13:37 | |
| 10 | C4.96 | 1999/03/16 | 20:07 | 20:21 | 20:27 |
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| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
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| December 2025 | 186 +94.2 |
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