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Viewing archive of Sunday, 11 August 2013 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxCM
90 140 -3B4.71M1.2161

Sunspot regions

Region 11809

Number of
sunspots
Size Class Magn. Class Spot Location
2 1 20 -10 HRX N10W67
HMIIF
HMIBC

Region 11813

Number of
sunspots
Size Class Magn. Class Spot Location
8 30 -40 CRO S14W47
HMIIF
HMIBC

Region 11814

Number of
sunspots
Size Class Magn. Class Spot Location
1 20 HAX S26E22
HMIIF
HMIBC

Region 11817

Number of
sunspots
Size Class Magn. Class Spot Location
3 10 CRO S22E34
HMIIF
HMIBC

Solar flares on this day

C1.59 B9.66 C2.92 C1.71 C3.05 C9.66 M1.21

Region 11818

Number of
sunspots
Size Class Magn. Class Spot Location
1 20 HRX S07E58
HMIIF
HMIBC

Solar flares on this day

B8.2

Region 11819

Number of
sunspots
Size Class Magn. Class Spot Location
1 10 AXX S20E49
HMIIF
HMIBC

Solar flares on this day

C1.93

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 (10.65nT), the direction is slightly South (-3.43nT).

S1 - Minor solar radiation storm

Minor impacts on HF radio through polar regions

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Space weather facts

Last X-flare2025/03/28X1.1
Last M-flare2025/04/01M2.4
Last geomagnetic storm2025/03/27Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
February 2025154.6 +17.6
Last 30 days128.1 -22.5

This day in history*

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