Sunspot region AR11917
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2013/12/08 | 8 | 60 | DAO | S16E63 | |
| 2013/12/09 | 8 | 210 | DAI | S16E57 | |
| 2013/12/10 | 10 | 240 | CAI | S16E45 | |
| 2013/12/11 | 18 | 250 | DKI | S17E31 | |
| 2013/12/12 | 13 | 210 | DAI | S15E17 | |
| 2013/12/13 | 12 | 190 | CAI | S15E04 | |
| 2013/12/14 | 11 | 220 | DAI | S15W10 | |
| 2013/12/15 | 26 | 260 | DKC | S15W24 | |
| 2013/12/16 | 33 | 340 | DKC | S15W37 | |
| 2013/12/17 | 16 | 320 | EKC | S15W51 | |
| 2013/12/18 | 16 | 320 | EKC | S15W51 | |
| 2013/12/19 | 4 | 420 | DKI | S16W77 | |
| 2013/12/20 | 2 | 180 | CSO | S17W91 |
2013/12/08
2013/12/09
2013/12/10
2013/12/11
2013/12/12
2013/12/13
2013/12/14
2013/12/15
2013/12/16
2013/12/17
2013/12/18
2013/12/19
2013/12/20
|
2013/12/08
2013/12/09
2013/12/10
2013/12/11
2013/12/12
2013/12/13
2013/12/14
2013/12/15
2013/12/16
2013/12/17
2013/12/18
2013/12/19
2013/12/20
|
| C |
|---|
| 16 |
The top 10 solar flares from sunspot region 11917
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C6.94 | 2013/12/13 | 03:05 | 03:15 | 03:31 | |
| 2 | C5.22 | 2013/12/16 | 03:21 | 03:30 | 03:44 | |
| 3 | C4.94 | 2013/12/12 | 06:38 | 06:59 | 07:37 | |
| 4 | C4.18 | 2013/12/09 | 11:15 | 11:30 | 11:48 | |
| 5 | C3.92 | 2013/12/11 | 22:49 | 23:06 | 23:17 | |
| 6 | C3.7 | 2013/12/12 | 16:36 | 16:43 | 16:48 | |
| 7 | C3.28 | 2013/12/14 | 11:00 | 11:24 | 11:40 | |
| 8 | C3.27 | 2013/12/12 | 11:32 | 11:39 | 12:09 | |
| 9 | C3.17 | 2013/12/13 | 01:33 | 01:38 | 01:41 | |
| 10 | C3.05 | 2013/12/07 | 17:34 | 17:41 | 17:52 |
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| Last M-flare | 2026/01/21 | M3.4 |
| Last geomagnetic storm | 2026/01/22 | Kp5+ (G1) |
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|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 119.1 -4.9 |
| Last 30 days | 122.3 +12.7 |