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
Monday, 30 March 2026
X1.5 solar flare
Tuesday, 17 March 2026
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Sunday, 1 February 2026
Complex sunspot region 4366
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Space weather facts
| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/09 | M1.0 |
| Last geomagnetic storm | 2026/04/20 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2026 | 85.9 +7.7 |
| April 2026 | 79.3 -6.7 |
| Last 30 days | 92.4 +29.5 |
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