Viewing archive of Friday, 20 September 2013 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxC
850 -3B4C5.525

Sunspot regions

Region 11841

Number of
sunspots
Size Class Magn. Class Spot Location
1 10 -10 HRX S04W38
HMIIF
HMIBC

Region 11843

Number of
sunspots
Size Class Magn. Class Spot Location
6 1 60 20 DSO N01W21
HMIIF
HMIBC

Region 11845

Number of
sunspots
Size Class Magn. Class Spot Location
1 10 AXX S18E34
HMIIF
HMIBC

Region 11846

Number of
sunspots
Size Class Magn. Class Spot Location
2 1 180 20 CSO S16E49
HMIIF
HMIBC

Region 11848

Number of
sunspots
Size Class Magn. Class Spot Location
1 10 AXX S10E36
HMIIF
HMIBC

Region 11849

Number of
sunspots
Size Class Magn. Class Spot Location
3 10 BXO N22E32
HMIIF
HMIBC

Region 11850

Number of
sunspots
Size Class Magn. Class Spot Location
1 10 AXX N09E75
HMIIF
HMIBC

Solar flares on this day

C1.32 C3.08 C5.48 C3.36 C1.83 B9.26

All times in UTC

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

Gillam, MB, Yellowknife, NT

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

Edmonton, AB, Iqaluit, NU, Saskatoon, SK
Nuuk
Reykjavik
The strength of the interplanetary magnetic field is moderate (10.31nT), the direction is slightly South (-8.26nT).

S1 - Minor solar radiation storm

Minor impacts on HF radio through polar regions

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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
April 2025147 -7.6
Last 30 days128.8 -21.8

This day in history*

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