Viewing archive of Thursday, 21 January 1999 - Sunspot regions

It appears that the image of the visible solar disk for this day in history is missing.
Sunspot number New regionsBackground fluxMaximum fluxC
134 -221 1C8.71M1.231

Sunspot regions

Region 8437

Number of
sunspots
Size Class Magn. Class Spot Location
1 70 HSX N11W64

Region 8439

Number of
sunspots
Size Class Magn. Class Spot Location
34 -10 290 -10 FAI S24W28

Region 8440

Number of
sunspots
Size Class Magn. Class Spot Location
39 -10 300 FAI N19W24

Solar flares on this day

C7.37

Region 8442

Number of
sunspots
Size Class Magn. Class Spot Location
7 -4 100 30 CAO N24W55

Region 8443

Number of
sunspots
Size Class Magn. Class Spot Location
1 -2 0 -10 AXX S17E45

Region 8444

Number of
sunspots
Size Class Magn. Class Spot Location
2 0 AXX N19E05

Region 8445

Number of
sunspots
Size Class Magn. Class Spot Location
2 0 BXO N12E10

All times in UTC

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Last X-flare2024/11/06X2.39
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This day in history*

Solar flares
11998X5.37
21998X3.59
32001X1.41
42001M5.51
51998M2.7
DstG
11991-139G2
21982-114G2
31975-97G2
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*since 1994

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