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Viewing archive of Wednesday, 27 December 2023

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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
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Unspecified geomagnetic activity 39Space Weather Memes 760AR4294 / 4296 / 4298 290Current Farside Activity 233AR 4299 23
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Space weather facts

Last X-flare2025/12/01X1.9
Last M-flare2025/12/04M6.0
Last geomagnetic storm2025/12/04Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
October 2025114.6 -15.2
December 2025186 +71.4
Last 30 days106.3 +12.6

This day in history*

Solar flares
12006X12.9
22006M2.63
32024M2.5
42014M2.22
52023M1.5
DstG
11958-176G3
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*since 1994

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