Sunspot region AR12872
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2021/09/20 | 7 | 30 | CRO | N19E42 | |
| 2021/09/21 | 4 | 10 | BXO | N18E25 | |
| 2021/09/22 | 9 | 70 | CAI | N17E14 | |
| 2021/09/23 | 15 | 120 | CAI | N17E01 | |
| 2021/09/24 | 10 | 80 | CAO | N17W12 | |
| 2021/09/25 | 9 | 60 | CRO | N17W26 | |
| 2021/09/26 | 7 | 40 | CRO | N16W38 | |
| 2021/09/27 | 4 | 10 | BXO | N16W53 |
2021/09/20
2021/09/21
2021/09/22
2021/09/23
2021/09/24
2021/09/25
2021/09/26
2021/09/27
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2021/09/20
2021/09/21
2021/09/22
2021/09/23
2021/09/24
2021/09/25
2021/09/26
2021/09/27
|
| B |
|---|
| 5 |
The top 5 solar flares from sunspot region 12872
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | B4.2 | 2021/09/21 | 23:51 | 23:55 | 23:59 | |
| 2 | B3.7 | 2021/09/26 | 15:38 | 15:47 | 16:10 | |
| 3 | B3.4 | 2021/09/22 | 11:17 | 11:25 | 11:30 | |
| 4 | B1.9 | 2021/09/24 | 23:34 | 23:38 | 23:42 | |
| 5 | B1.8 | 2021/09/24 | 15:57 | 16:05 | 16:09 |
Latest news
Monday, 30 March 2026
X1.5 solar flare
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
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Space weather facts
| Last X-flare | 2026/03/30 | X1.4 |
| Last M-flare | 2026/03/28 | M1.3 |
| Last geomagnetic storm | 2026/03/25 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 88.4 +10.2 |
| Last 30 days | 88.4 +14.9 |
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