Viewing archive of Friday, 28 July 2023 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxCM
148 -61 -2C1.68M4.1191

Sunspot regions

Region 13376

Number of
sunspots
Size Class Magn. Class Spot Location
5 140 DAO N22W0*
HMIIF
HMIBC

Solar flares on this day

C7.4 C6.7 C3.3 M4.1

Region 13377

Number of
sunspots
Size Class Magn. Class Spot Location
2 200 -20 DSO S08W74
HMIIF
HMIBC

Region 13379

Number of
sunspots
Size Class Magn. Class Spot Location
1 -6 180 -20 HSX N14W50
HMIIF
HMIBC

Region 13380

Number of
sunspots
Size Class Magn. Class Spot Location
14 7 200 90 CAI S12W02
HMIIF
HMIBC

Solar flares on this day

C3.8

Region 13382

Number of
sunspots
Size Class Magn. Class Spot Location
1 10 AXX N19W46
HMIIF
HMIBC

Region 13384

Number of
sunspots
Size Class Magn. Class Spot Location
3 -1 10 -10 AXX S15E15
HMIIF
HMIBC

Region 13385

Number of
sunspots
Size Class Magn. Class Spot Location
1 20 HRX S15W49
HMIIF
HMIBC

Region 13386

Number of
sunspots
Size Class Magn. Class Spot Location
18 7 360 180 DKI N12E33
HMIIF
HMIBC

Solar flares on this day

C2.9

Region 13387

Number of
sunspots
Size Class Magn. Class Spot Location
4 2 120 60 CAO N20E52
HMIIF
HMIBC

Solar flares on this day

C2.2

Region 13388

Number of
sunspots
Size Class Magn. Class Spot Location
3 60 30 CSO S23E48
HMIIF
HMIBC

Region 13389

Number of
sunspots
Size Class Magn. Class Spot Location
1 40 20 HSX S09E58
HMIIF
HMIBC

Region 13390

Number of
sunspots
Size Class Magn. Class Spot Location
1 20 HRX S18E70
HMIIF
HMIBC

Solar flares on this day

C3.0 C7.7 C5.9

All times in UTC

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Spotless days
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Last 30 days160.9 +7.7

This day in history*

Solar flares
12013X4.93
21998X1.21
32014X1.14
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52004M5.72
DstG
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*since 1994

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