Viewing archive of Monday, 31 August 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 fluxCM
133 -30 -1C1.71M2.2762

Sunspot regions

Region 8307

Number of
sunspots
Size Class Magn. Class Spot Location
3 -6 140 DSO N30W65

Solar flares on this day

M2.27

Region 8308

Number of
sunspots
Size Class Magn. Class Spot Location
1 30 -60 HSX S22W89

Region 8318

Number of
sunspots
Size Class Magn. Class Spot Location
2 10 AXX S23W58

Region 8319

Number of
sunspots
Size Class Magn. Class Spot Location
27 -5 570 300 EKI N18W41

Region 8321

Number of
sunspots
Size Class Magn. Class Spot Location
1 20 HSX N31E37

Region 8322

Number of
sunspots
Size Class Magn. Class Spot Location
11 2 70 50 DAO N22W26

Region 8323

Number of
sunspots
Size Class Magn. Class Spot Location
9 4 780 510 EKC S21E54

Solar flares on this day

C3.3 C3.44

Region 8324

Number of
sunspots
Size Class Magn. Class Spot Location
2 10 AXX N22W12

All times in UTC

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Last X-flare2026/03/30X1.5
Last M-flare2026/04/04M1.0
Last geomagnetic storm2026/04/03Kp7- (G3)
Spotless days
Last 365 days3 days
20263 days (3%)
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Monthly mean Sunspot Number
March 202685.9 +7.7
April 2026128.3 +42.3
Last 30 days97.5 +35.7

This day in history*

Solar flares
12001X1.21
22001M7.3
32001M4.52
42013M3.28
52004M2.47
DstG
11993-165G3
21968-112G3
31978-109G1
41984-108G2
51989-101G2
*since 1994

Aurora on this day in history

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