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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October 2024166.4 +25
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Last 30 days155.2 +4.4

This day in history*

Solar flares
12012M5.08
21999M4.93
31999M3.27
42000M2.33
52012M2.11
DstG
12003-309G3
21991-135G3
32002-128G3
41960-111G2
51970-110G2
*since 1994

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