Sunspot region AR12917
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2021/12/22 | 2 | 10 | BXO | S26E30 | |
| 2021/12/23 | 7 | 30 | CRO | S27E16 | |
| 2021/12/24 | 9 | 50 | CRO | S28E05 | |
| 2021/12/25 | 5 | 20 | CRO | S28W06 | |
| 2021/12/29 | 1 | 10 | AXX | S26W62 | |
| 2021/12/30 | 1 | 10 | AXX | S27W75 | |
| 2021/12/31 | 1 | 10 | AXX | S27W90 |
2021/12/22
2021/12/23
2021/12/24
2021/12/25
2021/12/29
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2021/12/31
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2021/12/22
2021/12/23
2021/12/24
2021/12/25
2021/12/29
2021/12/30
2021/12/31
|
| B | C |
|---|---|
| 1 | 7 |
The top 8 solar flares from sunspot region 12917
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C7.5 | 2021/12/24 | 03:25 | 03:42 | 03:50 | |
| 2 | C3.1 | 2021/12/25 | 15:47 | 15:58 | 16:08 | |
| 3 | C1.9 | 2021/12/23 | 13:26 | 13:31 | 13:36 | |
| 4 | C1.8 | 2021/12/25 | 07:13 | 07:26 | 07:49 | |
| 5 | C1.4 | 2021/12/23 | 13:16 | 13:22 | 13:26 | |
| 6 | C1.4 | 2021/12/27 | 04:06 | 04:20 | 04:33 | |
| 7 | C1.3 | 2021/12/27 | 09:45 | 09:53 | 09:59 | |
| 8 | B9.9 | 2021/12/26 | 21:36 | 21:44 | 21:52 |
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| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
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