Viewing archive of Tuesday, 23 August 2011 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum flux
81 -11 1B3.43B8.2

Sunspot regions

Region 11271

Number of
sunspots
Size Class Magn. Class Spot Location
28 13 280 40 EKC N17W16

Solar flares on this day

B8.01

Region 11272

Number of
sunspots
Size Class Magn. Class Spot Location
11 3 60 -30 DSI S21W08

Region 11274

Number of
sunspots
Size Class Magn. Class Spot Location
2 30 DSO N18E42

Region 11275

Number of
sunspots
Size Class Magn. Class Spot Location
1 10 -20 CSO N07E55

All times in UTC

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Active geomagnetic conditions

Observed Kp: 4
Threshold reached: 23:02 UTC

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

Nuuk
Reykjavik

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Latest alerts

Monday, 14 April 2025
23:15 UTC - Geomagnetic activity

Active geomagnetic conditions (Kp4) Threshold Reached: 23:01 UTC

alert


07:09 UTC - Solar flare

Moderate M4.28 flare from sunspot region 4055

alert


06:48 UTC - Radio Blackout

Minor R1 radio blackout in progress (≥M1 - current: M1.53)


06:24 UTC - Solar flare

Moderate M1.49 flare from sunspot region 4055

alert


06:06 UTC - Radio Blackout

Minor R1 radio blackout in progress (≥M1 - current: M1.16)


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Last X-flare2025/03/28X1.1
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April 2025132.1 -2.1
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