Sunspot region AR12641
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2017/02/28 | 5 | 40 | CRO | N15E46 | |
| 2017/03/01 | 6 | 100 | CAO | N15E26 | |
| 2017/03/02 | 7 | 60 | DRO | N14E19 | |
| 2017/03/03 | 7 | 30 | BXO | N15E04 | |
| 2017/03/04 | 3 | 10 | BXO | N15W10 | |
| 2017/03/06 | 1 | 10 | AXX | N15W38 |
2017/02/28
2017/03/01
2017/03/02
2017/03/03
2017/03/04
2017/03/06
|
2017/02/28
2017/03/01
2017/03/02
2017/03/03
2017/03/04
2017/03/06
|
| B | C |
|---|---|
| 13 | 2 |
The top 10 solar flares from sunspot region 12641
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C1.28 | 2017/02/27 | 20:07 | 20:17 | 20:25 | |
| 2 | C1.05 | 2017/02/28 | 11:42 | 11:51 | 12:15 | |
| 3 | B4.5 | 2017/02/28 | 06:23 | 06:29 | 06:32 | |
| 4 | B4.2 | 2017/02/28 | 04:30 | 04:38 | 04:45 | |
| 5 | B3.6 | 2017/02/27 | 17:12 | 17:23 | 18:04 | |
| 6 | B3.53 | 2017/03/01 | 07:57 | 08:00 | 08:02 | |
| 7 | B3.26 | 2017/02/27 | 21:36 | 21:39 | 21:42 | |
| 8 | B3.12 | 2017/03/01 | 08:03 | 08:07 | 08:10 | |
| 9 | B2.53 | 2017/03/01 | 04:07 | 04:12 | 04:19 | |
| 10 | B2.11 | 2017/03/01 | 04:30 | 04:33 | 04:37 |
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
Current Farside Activity 387Solar Transit, Artifacts, or Radiation 80Changelog/Featurelog 178What, no CH/HSS thread? 52AR4374 20
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 | 2026/02/04 | X4.21 |
| Last M-flare | 2026/02/16 | M2.4 |
| Last geomagnetic storm | 2026/02/16 | Kp6 (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 106.5 -6.1 |
| Last 30 days | 124.3 +22.3 |