Sunspot region AR12302
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2015/03/18 | 1 | 10 | CRI | N10W54 | |
| 2015/03/19 | 9 | 80 | CAI | N10W79 | |
| 2015/03/20 | 8 | 80 | CAI | N12W84 | |
| 2015/03/21 | 8 | 80 | CAI | N12W98 |
2015/03/18
2015/03/19
2015/03/20
|
2015/03/18
2015/03/19
2015/03/20
|
| C | M |
|---|---|
| 11 | 2 |
The top 10 solar flares from sunspot region 12302
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.5 | 2015/03/17 | 22:49 | 23:34 | 23:48 | |
| 2 | M1.33 | 2015/03/18 | 07:40 | 07:51 | 07:59 | |
| 3 | C7.88 | 2015/03/18 | 10:18 | 10:30 | 10:41 | |
| 4 | C5.65 | 2015/03/18 | 06:41 | 06:59 | 07:07 | |
| 5 | C5.45 | 2015/03/18 | 12:47 | 13:14 | 13:25 | |
| 6 | C5.1 | 2015/03/18 | 16:05 | 16:10 | 16:15 | |
| 7 | C4.93 | 2015/03/18 | 22:55 | 23:01 | 23:05 | |
| 8 | C4.06 | 2015/03/18 | 08:32 | 09:51 | 10:00 | |
| 9 | C3.33 | 2015/03/18 | 17:56 | 18:00 | 18:02 | |
| 10 | C3.15 | 2015/03/19 | 01:20 | 01:31 | 01:34 |
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/02/25 | M2.4 |
| Last geomagnetic storm | 2026/02/22 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (5%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 76.8 -35.8 |
| Last 30 days | 83.6 -38.4 |