Sunspot region AR12437
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2015/10/19 | 1 | 60 | HAX | S19E74 | |
| 2015/10/20 | 6 | 60 | CAO | S19E60 | |
| 2015/10/21 | 4 | 50 | CAO | S20E46 | |
| 2015/10/22 | 2 | 20 | HSX | S20E32 | |
| 2015/10/23 | 3 | 20 | CAO | S20E18 | |
| 2015/10/24 | 1 | 20 | HAX | S19E05 | |
| 2015/10/25 | 1 | 20 | HRX | S19W08 | |
| 2015/10/26 | 1 | 10 | HRX | S19W21 | |
| 2015/10/27 | 2 | 10 | AXX | S21W33 | |
| 2015/10/28 | 1 | 10 | AXX | S21W47 | |
| 2015/10/29 | 7 | 20 | CRO | S18W62 | |
| 2015/10/30 | 1 | 30 | CSO | S17W76 |
2015/10/19
2015/10/20
2015/10/21
2015/10/22
2015/10/23
2015/10/24
2015/10/25
2015/10/26
2015/10/27
2015/10/28
2015/10/29
2015/10/30
|
2015/10/19
2015/10/20
2015/10/21
2015/10/22
2015/10/23
2015/10/24
2015/10/25
2015/10/26
2015/10/27
2015/10/28
2015/10/29
2015/10/30
|
| C |
|---|
| 8 |
The top 8 solar flares from sunspot region 12437
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C8.72 | 2015/10/30 | 15:33 | 15:37 | 15:41 | |
| 2 | C4.42 | 2015/10/30 | 12:54 | 13:01 | 13:09 | |
| 3 | C3.1 | 2015/10/26 | 10:21 | 10:29 | 10:41 | |
| 4 | C2.43 | 2015/10/28 | 08:33 | 08:39 | 08:47 | |
| 5 | C2 | 2015/10/18 | 20:02 | 20:08 | 20:13 | |
| 6 | C1.84 | 2015/10/28 | 05:53 | 06:06 | 06:23 | |
| 7 | C1.69 | 2015/10/20 | 03:56 | 04:04 | 04:16 | |
| 8 | C1.55 | 2015/10/20 | 13:56 | 13:59 | 14:01 |
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| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/04 | M1.0 |
| Last geomagnetic storm | 2026/04/03 | Kp7- (G3) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2026 | 85.9 +7.7 |
| April 2026 | 122.8 +36.9 |
| Last 30 days | 100.8 +44.4 |
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