Viewing archive of Saturday, 2 September 2017 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot numberNew regionsBackground fluxMaximum fluxC
71 91 1B2.3C7.754

Sunspot regions

Region 12672

Number of
sunspots
Size Class Magn. Class Spot Location
2 -2 60 -10 DAO N08W84

Solar flares on this day

B5.7 C7.7 C1.5

Region 12673

Number of
sunspots
Size Class Magn. Class Spot Location
1 80 HSX S08E23

Region 12674

Number of
sunspots
Size Class Magn. Class Spot Location
15 5 770 FHI N13E38

Solar flares on this day

B7.9 C1.1 C1.0 B6.2 B4.3 B4.2 B8.5

Region 12675

Number of
sunspots
Size Class Magn. Class Spot Location
4 30 CRO S08W37

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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

This day in history*

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32003X1.1
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52003M3.2
ApG
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*since 1994

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