Viewing archive of Monday, 21 September 1998 - 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
151 210B5C4.035

Sunspot regions

Region 8335

Number of
sunspots
Size Class Magn. Class Spot Location
3 -1 70 10 DSO S21W39

Region 8336

Number of
sunspots
Size Class Magn. Class Spot Location
15 5 70 -10 DSI S29W02

Region 8337

Number of
sunspots
Size Class Magn. Class Spot Location
4 20 -10 BXO S40W11

Region 8338

Number of
sunspots
Size Class Magn. Class Spot Location
1 50 -20 HSX N31E31

Region 8339

Number of
sunspots
Size Class Magn. Class Spot Location
7 50 CSO S16E01

Region 8340

Number of
sunspots
Size Class Magn. Class Spot Location
11 -1 490 20 DKO N19E38

Solar flares on this day

C4.03 C2.87

Region 8342

Number of
sunspots
Size Class Magn. Class Spot Location
8 7 40 30 CSO N18E25

Region 8343

Number of
sunspots
Size Class Magn. Class Spot Location
1 -1 0 -10 AXX N37E47

All times in UTC

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Last X-flare2024/11/06X2.39
Last M-flare2024/11/13M1.7
Last geomagnetic storm2024/11/10Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
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October 2024166.4 +25
November 2024166 -0.4
Last 30 days163.2 +18.4

This day in history*

Solar flares
11999X1.15
21999M8.06
32005M5.58
41999M4.11
52005M3.72
DstG
11960-167G3
21998-109G2
32012-108G2
41989-105
51979-90G1
*since 1994

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