Viewing archive of Thursday, 6 April 2017 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot numberNew regionsBackground fluxMaximum fluxC
38 10B1.6C5.582

Sunspot regions

Region 12644

Number of
sunspots
Size Class Magn. Class Spot Location
7 150 EAO N13W0*

Region 12645

Number of
sunspots
Size Class Magn. Class Spot Location
12 -4 500 -180 FKC S10W67

Solar flares on this day

B2.9 B8.4 B4.0 C1.1 C5.5 B5.5 B4.8 B4.7

Region 12648

Number of
sunspots
Size Class Magn. Class Spot Location
5 -3 50 20 BXO S02E22

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/09/28Kp5 (G1)
Number of spotless days in 2019:219
Current stretch spotless days:21

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*since 1994

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