Sunspot region AR12638
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2017/02/21 | 4 | 80 | DAO | N18E58 | |
| 2017/02/22 | 9 | 140 | DSO | N18E49 | |
| 2017/02/23 | 7 | 150 | DSO | N19E35 | |
| 2017/02/24 | 8 | 150 | CSO | N18E20 | |
| 2017/02/25 | 5 | 120 | CSO | N18E08 | |
| 2017/02/26 | 2 | 100 | CSO | N18W03 | |
| 2017/02/27 | 1 | 100 | HSX | N18W16 | |
| 2017/02/28 | 1 | 90 | HSX | N16W29 | |
| 2017/03/01 | 1 | 80 | HSX | N16W43 | |
| 2017/03/02 | 1 | 80 | HSX | N16W55 | |
| 2017/03/03 | 1 | 80 | HSX | N16W69 | |
| 2017/03/04 | 1 | 80 | HSX | N16W83 | |
| 2017/03/05 | 1 | 80 | HSX | N16W97 |
2017/02/21
2017/02/22
2017/02/23
2017/02/24
2017/02/25
2017/02/26
2017/02/27
2017/02/28
2017/03/01
2017/03/02
2017/03/03
2017/03/04
|
2017/02/21
2017/02/22
2017/02/23
2017/02/24
2017/02/25
2017/02/26
2017/02/27
2017/02/28
2017/03/01
2017/03/02
2017/03/03
2017/03/04
|
| B | C |
|---|---|
| 16 | 3 |
The top 10 solar flares from sunspot region 12638
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C5.92 | 2017/02/22 | 13:03 | 13:27 | 13:38 | |
| 2 | C1.88 | 2017/02/23 | 20:43 | 20:53 | 21:11 | |
| 3 | C1.52 | 2017/02/24 | 00:04 | 00:12 | 00:14 | |
| 4 | B9.23 | 2017/02/22 | 01:40 | 01:51 | 02:02 | |
| 5 | B7.8 | 2017/02/23 | 20:17 | 20:24 | 20:27 | |
| 6 | B7.23 | 2017/02/20 | 13:43 | 13:48 | 13:51 | |
| 7 | B6.51 | 2017/02/22 | 21:07 | 21:13 | 21:18 | |
| 8 | B6.32 | 2017/02/23 | 10:42 | 10:54 | 11:04 | |
| 9 | B5.83 | 2017/02/20 | 11:22 | 11:29 | 11:37 | |
| 10 | B5.75 | 2017/02/23 | 00:45 | 01:05 | 01:20 |
Latest news
Thursday, 11 September 2025
Coronal hole faces Earth
Sunday, 31 August 2025
M2.7 solar flare with earth-directed CME!
Tuesday, 5 August 2025
M4.4 solar flare from sunspot region 4168
Latest forum messages
Coronal Hole 85 2CMEs from 2025/10/03 47Unspecified geomagnetic activity 3204Incoming & Unnumbered Active Regions 2108MODELO MAGNETOSFERA 3
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!
Space weather facts
| Last X-flare | 2025/06/19 | X1.9 |
| Last M-flare | 2025/10/03 | M1.2 |
| Last geomagnetic storm | 2025/10/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| September 2025 | 129.8 -3.7 |
| October 2025 | 140.1 +10.3 |
| Last 30 days | 131.3 -1.2 |