Viewing archive of Tuesday, 20 January 2015 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot numberNew regionsBackground fluxMaximum fluxC
57 -50 -1B4.9C32

Sunspot regions

Region 12259

Number of
sunspots
Size Class Magn. Class Spot Location
1 -4 70 -20 HSX S16W74

Solar flares on this day

B8.3

Region 12265

Number of
sunspots
Size Class Magn. Class Spot Location
4 -3 20 CAO S23W10

Region 12266

Number of
sunspots
Size Class Magn. Class Spot Location
16 3 130 100 DAI S06W03

Solar flares on this day

C1.0

Region 12267

Number of
sunspots
Size Class Magn. Class Spot Location
1 30 HAX N18E58

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/10/26Kp5 (G1)
Number of spotless days in 2020:16
Last spotless day:2020/01/23

This day in history*

Solar flares
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31999C8.0
42002C7.5
52001C7.4
ApG
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*since 1994

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