Viewing archive of Thursday, 20 April 2017 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot numberNew regionsBackground fluxMaximum flux
26 121 1B1.1B8.06

Sunspot regions

Region 12651

Number of
sunspots
Size Class Magn. Class Spot Location
4 2 110 90 DAO N12E59

Solar flares on this day

B8.0 B2.6 B3.7

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/06/08Kp5 (G1)
Number of spotless days in 2019:103
Current stretch spotless days:30

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*since 1994

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