Sunspot region AR9853
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2002/03/03 | 1 | 10 | HRX | S24E69 | |
| 2002/03/04 | 3 | 50 | HAX | S23E54 | |
| 2002/03/05 | 7 | 80 | DAO | S23E42 | |
| 2002/03/06 | 10 | 80 | DAO | S23E28 | |
| 2002/03/07 | 10 | 70 | DAO | S23E15 | |
| 2002/03/08 | 9 | 70 | DAO | S23E02 | |
| 2002/03/09 | 8 | 40 | CAO | S23W11 | |
| 2002/03/10 | 3 | 20 | CSO | S22W26 | |
| 2002/03/11 | 2 | 20 | CRO | S24W39 |
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
Latest forum messages
Upper atmosphere phenomena Red sprites and Blue jets 2Incoming & Unnumbered Active Regions 1667Unspecified geomagnetic activity 2228A few (probably stupid) questions about Earth's magnetic field decay 4AR 4054 6
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Latest alerts
02:00 UTC - Geomagnetic activity
Minor G1 geomagnetic storm (Kp5) Threshold Reached: 01:50 UTC
Saturday, 5 April 2025
20:30 UTC - Geomagnetic activity
Minor G1 geomagnetic storm (Kp5) Threshold Reached: 20:20 UTC
20:24 UTC - Solar flare
Moderate M1.05 flare
20:09 UTC - Radio Blackout
Minor R1 radio blackout in progress (≥M1 - current: M1.05)
10:00 UTC - Hemispheric Power Index
The OVATION model predicts the Hemispheric Power Index to reach 78GW at 10:32 UTC
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/05 | M1.0 |
| Last geomagnetic storm | 2025/04/05 | Kp6- (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 150.4 +16.2 |
| Last 30 days | 131.6 -13.4 |