Viewing archive of Friday, 20 December 2013 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxCM
137 -12 1C1.57M2.3172

Sunspot regions

Region 11917

Number of
sunspots
Size Class Magn. Class Spot Location
2 -2 180 -240 CSO S17W91
HMIIF
HMIBC

Region 11918

Number of
sunspots
Size Class Magn. Class Spot Location
3 2 10 -40 AXX S10W70
HMIIF
HMIBC

Region 11920

Number of
sunspots
Size Class Magn. Class Spot Location
2 1 60 10 CSO N13W62
HMIIF
HMIBC

Region 11921

Number of
sunspots
Size Class Magn. Class Spot Location
2 220 HAX N06W57
HMIIF
HMIBC

Region 11928

Number of
sunspots
Size Class Magn. Class Spot Location
24 3 360 120 EKC S16W19
HMIIF
HMIBC

Solar flares on this day

C4.62 M1.23 C7.79 C3.33

Region 11929

Number of
sunspots
Size Class Magn. Class Spot Location
2 1 10 BXO S11E40
HMIIF
HMIBC

Region 11930

Number of
sunspots
Size Class Magn. Class Spot Location
10 3 90 50 DAI S11E22
HMIIF
HMIBC

Region 11931

Number of
sunspots
Size Class Magn. Class Spot Location
1 210 110 HAX S15E62
HMIIF
HMIBC

Region 11932

Number of
sunspots
Size Class Magn. Class Spot Location
2 10 AXX N04E17
HMIIF
HMIBC

All times in UTC

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

Gillam, MB, Whitehorse, YT, Yellowknife, NT
Fairbanks, AK

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Moderate M1.54 flare from sunspot region 4048

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Minor R1 radio blackout in progress (≥M1 - current: M1.24)


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Moderate M1.91 flare from sunspot region 4048

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Space weather facts

Last X-flare2025/03/28X1.1
Last M-flare2025/03/30M1.5
Last geomagnetic storm2025/03/27Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
February 2025154.6 +17.6
March 2025127.5 -27.1
Last 30 days127.5 -24.7

This day in history*

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DstG
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*since 1994

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