Viewing archive of Sunday, 20 December 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
42 -11 -1B1.39B3.86

Sunspot regions

Region 11035

Number of
sunspots
Size Class Magn. Class Spot Location
8 -2 220 -90 EHO N30W56

Region 11036

Number of
sunspots
Size Class Magn. Class Spot Location
3 10 BXO S29W19

Region 11037

Number of
sunspots
Size Class Magn. Class Spot Location
2 10 BXO N18E54

All times in UTC

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G2 - Moderate geomagnetic storm

Observed Kp: 6
Threshold reached: 20:16 UTC

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

Rovaniemi, Sodankylä, Utsjoki
Reykjavik
Kirkenes, Tromsø
Murmansk
Kiruna, Luleå
The solar wind speed is currently moderately high (558.7 km/sec.)
The strength of the interplanetary magnetic field is moderate (17.91nT), the direction is North (8.31nT).
The Disturbance Storm Time index predicts moderate storm conditions right now (-69nT)

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Latest alerts

20:30 UTC - Geomagnetic activity

Moderate G2 geomagnetic storm (Kp6) Threshold Reached: 20:08 UTC

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20:15 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 20:00 UTC

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18:00 UTC - Geomagnetic activity

Moderate G2 geomagnetic storm (Kp6) Threshold Reached: 17:00 UTC

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17:00 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 16:28 UTC

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14:15 UTC - Geomagnetic activity

Moderate G2 geomagnetic storm (Kp6) Threshold Reached: 13:58 UTC

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Last X-flare2025/02/23X2.0
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February 2025154.6 +17.6
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Last 30 days133.7 -19.9

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