Sunspot region AR12434
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2015/10/14 | 4 | 40 | CAO | S08E74 | |
| 2015/10/15 | 8 | 50 | CAI | S08E60 | |
| 2015/10/16 | 12 | 50 | DAO | S10E48 | |
| 2015/10/17 | 22 | 150 | DAI | S10E34 | |
| 2015/10/18 | 20 | 260 | DKI | S10E20 | |
| 2015/10/19 | 11 | 220 | DAI | S10E06 | |
| 2015/10/20 | 16 | 230 | DAC | S10W08 | |
| 2015/10/21 | 14 | 210 | DAI | S10W22 | |
| 2015/10/22 | 6 | 180 | CAO | S10W36 | |
| 2015/10/23 | 5 | 90 | CAO | S10W48 | |
| 2015/10/24 | 6 | 90 | CAO | S09W61 | |
| 2015/10/25 | 4 | 20 | CAO | S11W75 |
2015/10/14
2015/10/15
2015/10/16
2015/10/17
2015/10/18
2015/10/19
2015/10/20
2015/10/21
2015/10/22
2015/10/23
2015/10/24
2015/10/25
|
2015/10/14
2015/10/15
2015/10/16
2015/10/17
2015/10/18
2015/10/19
2015/10/20
2015/10/21
2015/10/22
2015/10/23
2015/10/24
2015/10/25
|
| B | C | M |
|---|---|---|
| 7 | 45 | 3 |
The top 10 solar flares from sunspot region 12434
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.7 | 2015/10/15 | 23:27 | 23:31 | 23:37 | |
| 2 | M1.62 | 2015/10/16 | 06:11 | 06:16 | 06:20 | |
| 3 | M1.37 | 2015/10/13 | 14:05 | 14:11 | 14:14 | |
| 4 | C6.83 | 2015/10/17 | 21:12 | 21:19 | 21:25 | |
| 5 | C6.54 | 2015/10/13 | 01:12 | 01:16 | 01:26 | |
| 6 | C6.46 | 2015/10/17 | 12:31 | 12:35 | 12:39 | |
| 7 | C6.38 | 2015/10/22 | 02:13 | 03:40 | 05:15 | |
| 8 | C6.08 | 2015/10/16 | 13:36 | 13:42 | 13:46 | |
| 9 | C5.61 | 2015/10/15 | 18:31 | 18:38 | 18:41 | |
| 10 | C5.53 | 2015/10/16 | 12:44 | 13:07 | 13:19 |
Latest news
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Latest forum messages
AR4366 74350 mhz F2 83Space Weather Memes 785X8 CME 17Do the high-resolution sunspot counts point to more complex sunspots? 48
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Space weather facts
| Last X-flare | 2026/02/03 | X1.5 |
| Last M-flare | 2026/02/03 | M3.4 |
| Last geomagnetic storm | 2026/01/28 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| February 2026 | 133 +9 |
| Last 30 days | 120.6 +10.9 |