Sunspot region AR9739
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2001/12/14 | 3 | 10 | CSO | S13W02 | |
| 2001/12/15 | 9 | 60 | DAO | S13W15 | |
| 2001/12/16 | 16 | 120 | DAO | S13W30 | |
| 2001/12/17 | 15 | 390 | DAO | S13W43 | |
| 2001/12/18 | 17 | 440 | DKO | S13W57 | |
| 2001/12/19 | 13 | 440 | EAO | S14W69 | |
| 2001/12/20 | 7 | 270 | EAO | S14W82 |
| C | M |
|---|---|
| 3 | 1 |
The top 4 solar flares from sunspot region 9739
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.92 | 2001/12/19 | 17:01 | 17:06 | 17:09 | |
| 2 | C5.1 | 2001/12/19 | 10:35 | 10:40 | 10:42 | |
| 3 | C2.92 | 2001/12/19 | 17:26 | 17:30 | 17:34 | |
| 4 | C2.39 | 2001/12/19 | 13:54 | 13:57 | 13:59 |
Latest news
Monday, 30 March 2026
X1.5 solar flare
Tuesday, 17 March 2026
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Space weather facts
| Last X-flare | 2026/04/24 | X2.5 |
| Last M-flare | 2026/04/27 | 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 | 85 -0.9 |
| Last 30 days | 90.9 +8.3 |
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