Sunspot number | New regions | Background flux | Maximum flux |
---|---|---|---|
29 -16 | 0 | A9.49 | B3.75 |
Region 12898 |
||||
---|---|---|---|---|
Number of sunspots |
Size | Class Magn. | Class Spot | Location |
4 3 | 80 -20 | CSO | S26W88 | |
Solar flares on this day | ||||
B1.9 B1.9 B1.4 B3.7 B3.5 |
Region 12900 |
||||
---|---|---|---|---|
Number of sunspots |
Size | Class Magn. | Class Spot | Location |
1 | 0 | AXX | S27W0* | |
Region 12902 |
||||
---|---|---|---|---|
Number of sunspots |
Size | Class Magn. | Class Spot | Location |
5 -8 | 60 -40 | CRO | N19W48 | |
Solar flares on this day | ||||
B1.1 B1.7 |
All times in UTC
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Begin Time: 08/04/2025 05:53 UTC Estimated Velocity: 456km/sec.
The OVATION model predicts the Hemispheric Power Index to reach 50GW at 06:02 UTC
A southern hemisphere coronal hole is facing Earth. Enhanced solar wind could arrive in ~3 days
Active geomagnetic conditions (Kp4) Threshold Reached: 20:39 UTC
The OVATION model predicts the Hemispheric Power Index to reach 51GW at 18:18 UTC
Last X-flare | 2025/03/28 | X1.1 |
Last M-flare | 2025/04/05 | M1.0 |
Last geomagnetic storm | 2025/04/06 | Kp5 (G1) |
Spotless days | |
---|---|
Last spotless day | 2022/06/08 |
Monthly mean Sunspot Number | |
---|---|
March 2025 | 134.2 -20.4 |
April 2025 | 151.3 +17.1 |
Last 30 days | 135.2 -4.5 |