Sunspot number | New regions | Background flux | Maximum flux | C |
---|---|---|---|---|
78 -5 | 0 -1 | B5.38 | C3.83 | 11 |
Region 12939 |
||||
---|---|---|---|---|
Number of sunspots |
Size | Class Magn. | Class Spot | Location |
5 1 | 180 -20 | CSO | S14W33 | |
Solar flares on this day | ||||
C0.9 B9.2 C1.3 B9.6 |
Region 12940 |
||||
---|---|---|---|---|
Number of sunspots |
Size | Class Magn. | Class Spot | Location |
19 7 | 140 -60 | DAO | N17W31 | |
Region 12941 |
||||
---|---|---|---|---|
Number of sunspots |
Size | Class Magn. | Class Spot | Location |
11 1 | 220 -70 | EAO | N24E24 | |
Solar flares on this day | ||||
C1.6 C1.2 |
Region 12942 |
||||
---|---|---|---|---|
Number of sunspots |
Size | Class Magn. | Class Spot | Location |
3 | 10 -10 | BXO | S11W76 | |
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 |