Sunspot region AR9640
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2001/09/28 | 4 | 40 | CSO | N10E67 | |
| 2001/09/29 | 2 | 20 | BXO | N10E56 | |
| 2001/09/30 | 3 | 30 | HSX | N10E41 | |
| 2001/10/01 | 2 | 20 | CSO | N10E26 | |
| 2001/10/02 | 3 | 40 | CAO | N11E12 | |
| 2001/10/03 | 10 | 20 | CAO | N10E00 | |
| 2001/10/04 | 6 | 10 | BXO | N10W13 | |
| 2001/10/05 | 5 | 20 | BXO | N11W27 |
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 | X1.5 |
| Last M-flare | 2026/04/02 | M3.5 |
| Last geomagnetic storm | 2026/04/02 | Kp6- (G2) |
| 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 |
| April 2026 | 141 +62.8 |
| Last 30 days | 94.6 +27 |
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