Viewing archive of Thursday, 18 April 2013 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot numberNew regionsBackground fluxMaximum fluxC
86 -30B2.8C6.542

Sunspot regions

Region 11719

Number of
sunspots
Size Class Magn. Class Spot Location
1 -2 50 HSX N09W91

Solar flares on this day

C1.6 C6.5

Region 11721

Number of
sunspots
Size Class Magn. Class Spot Location
2 -3 100 -20 CSO S17W75

Region 11722

Number of
sunspots
Size Class Magn. Class Spot Location
10 4 90 DAO S20W62

Region 11723

Number of
sunspots
Size Class Magn. Class Spot Location
21 190 -10 DAI S16W16

Region 11724

Number of
sunspots
Size Class Magn. Class Spot Location
2 -2 20 -20 CSO S26E07

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Last X-flare:2017/09/10X8.2
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Last geomagnetic storm:2019/10/26Kp5 (G1)
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This day in history*

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32001M1.8
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52001M1.4
ApG
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3199417
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*since 1994

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