Sunspot region AR12423
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2015/09/25 | 1 | 10 | CRO | S08W24 | |
| 2015/09/26 | 4 | 10 | BXO | S08W37 | |
| 2015/09/27 | 5 | 20 | CRI | S09W51 | |
| 2015/09/28 | 14 | 100 | DAI | S09W65 | |
| 2015/09/29 | 9 | 180 | DAC | S09W80 | |
| 2015/09/30 | 2 | 10 | BXO | S08W90 | |
| 2015/10/01 | 2 | 10 | BXO | S08W0* |
2015/09/25
2015/09/26
2015/09/27
2015/09/28
2015/09/29
2015/09/30
|
2015/09/25
2015/09/26
2015/09/27
2015/09/28
2015/09/29
2015/09/30
|
| C | M |
|---|---|
| 8 | 5 |
The top 10 solar flares from sunspot region 12423
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M5.16 | 2015/09/28 | 03:45 | 03:55 | 03:59 | |
| 2 | M2.12 | 2015/09/29 | 08:46 | 08:51 | 08:55 | |
| 3 | M1.75 | 2015/09/29 | 05:33 | 05:37 | 05:39 | |
| 4 | M1.73 | 2015/09/29 | 03:11 | 03:16 | 03:31 | |
| 5 | M1.09 | 2015/09/28 | 20:15 | 20:21 | 20:40 | |
| 6 | C7.17 | 2015/09/30 | 00:05 | 00:17 | 00:32 | |
| 7 | C6.45 | 2015/09/28 | 06:21 | 06:54 | 07:08 | |
| 8 | C5.92 | 2015/09/27 | 18:35 | 18:53 | 19:02 | |
| 9 | C5.87 | 2015/09/28 | 08:47 | 09:04 | 09:12 | |
| 10 | C4.46 | 2015/09/29 | 10:08 | 10:13 | 10:30 |
Latest news
Wednesday, 14 May 2025
Another X-flare! Potent sunspot region 4087!
Tuesday, 13 May 2025
X1.1 solar flare from sunspot region 4086
Tuesday, 15 April 2025
CME arrival, G3 storm watch
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Space weather facts
| Last X-flare | 2025/05/14 | X2.7 |
| Last M-flare | 2025/05/15 | M2.1 |
| Last geomagnetic storm | 2025/05/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2025 | 140.6 +6.4 |
| May 2025 | 73.4 -67.2 |
| Last 30 days | 99.6 -27.2 |