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Viewing archive of Tuesday, 4 August 2009 - Sunspot regions

It appears that the image of the visible solar disk for this day in history is missing.
Sunspot number New regionsBackground fluxMaximum flux
00A0.0A0.54

Sunspot regions

There were no sunspot regions on the earth-facing solar disc on this day

All times in UTC

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Active geomagnetic conditions

Observed Kp: 4
Threshold reached: 01:33 UTC

Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Gillam, MB, Iqaluit, NU
Nuuk
Reykjavik
The strength of the interplanetary magnetic field is moderate (10.47nT), the direction is slightly South (-5.33nT).

S1 - Minor solar radiation storm

Minor impacts on HF radio through polar regions

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Latest alerts

01:45 UTC - Geomagnetic activity

Active geomagnetic conditions (Kp4) Threshold Reached: 01:32 UTC

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Tuesday, 1 April 2025
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07:15 UTC - 10cm Radio Burst

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