Sunspot region AR9840
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2002/02/22 | 2 | 20 | AXX | S12E72 | |
| 2002/02/23 | 2 | 20 | CSO | S12E58 | |
| 2002/02/24 | 2 | 40 | CSO | S11E46 | |
| 2002/02/25 | 1 | 20 | HSX | S11E33 | |
| 2002/02/26 | 2 | 10 | HSX | S11E20 | |
| 2002/03/03 | 1 | 0 | AXX | S14W52 | |
| 2002/03/04 | 4 | 10 | BXO | S16W64 | |
| 2002/03/05 | 5 | 60 | CAO | S19W77 |
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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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 |