Sunspot region AR11663
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2013/01/27 | 3 | 10 | BXO | S10E46 | |
| 2013/01/28 | 7 | 40 | DSO | S10E33 | |
| 2013/01/29 | 8 | 80 | DSO | S11E19 | |
| 2013/01/30 | 9 | 120 | DSO | S11E05 | |
| 2013/01/31 | 1 | 80 | HSX | S09W11 | |
| 2013/02/01 | 2 | 50 | CSO | S09W24 | |
| 2013/02/02 | 6 | 50 | HSX | S10W36 | |
| 2013/02/03 | 2 | 30 | CAO | S09W52 | |
| 2013/02/04 | 1 | 0 | AXX | S09W65 |
| B | C |
|---|---|
| 2 | 1 |
The top 3 solar flares from sunspot region 11663
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C1.57 | 2013/01/31 | 04:30 | 04:34 | 04:37 | |
| 2 | B4.2 | 2013/01/31 | 05:06 | 05:10 | 05:16 | |
| 3 | B2.81 | 2013/01/31 | 05:36 | 05:40 | 05:48 |
Latest news
Friday, 28 March 2025
X1.1 solar flare
Monday, 24 March 2025
Coronal hole faces Earth
Saturday, 22 March 2025
Strong G3 geomagnetic storm watch for 23 March
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Latest alerts
07:15 UTC - 10cm Radio Burst
Begin Time: 01/04/2025 06:45 UTC Maximum Time: 01/04/2025 06:45 UTC Duration: 1 minutes. Peak flux: 190 sfu
07:06 UTC - Solar flare
Strong M5.61 flare
06:48 UTC - Radio Blackout
Moderate R2 radio blackout in progress (≥M5 - current: M5.36)
06:45 UTC - Radio Blackout
Minor R1 radio blackout in progress (≥M1 - current: M1.7)
02:15 UTC - Solar protons
Moderate S2 Solar Radiation Storm - Infrequent effects on HF radio through polar regions and satellite operations
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/01 | M5.6 |
| Last geomagnetic storm | 2025/03/27 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2025 | 154.6 +17.6 |
| Last 30 days | 128.5 -22.7 |