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Viewing archive of Monday, 4 May 2020

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Reports
Bulletin on solar and geomagnetic activity Solar activity report Geophysical report
Solar activity
Sunspot regions Solar flares Coronal holes Radiation storms
Auroral activity
Kp values Solar wind (Speed, Density), Interplanetary Magnetic Field (IMF) (Bt, Bz) Aurora Observations
Time flies... Roll on Solar Cycle 25...?

Time flies. Another month has passed and summer along with shorter nights is closing in for us northern hemisphere sky watchers.

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AR 14323 20Unspecified geomagnetic activity 54AR 4316 24Current Farside Activity 264AR14324 5
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Space weather facts

Last X-flare2025/12/08X1.1
Last M-flare2025/12/27M5.1
Last geomagnetic storm2025/12/22Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 202591.8 -22.8
December 2025115.5 +23.7
Last 30 days113.8 +28

This day in history*

Solar flares
12001X4.99
22001M6.83
31999M6.5
42024M4.5
51998M4.47
DstG
11992-96G2
21960-85G1
31991-74G1
41959-60G1
51985-59G1
*since 1994

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