Viewing archive of Tuesday, 8 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
164 261 1B7.71C3.577

Sunspot regions

Region 8323

Number of
sunspots
Size Class Magn. Class Spot Location
22 -13 970 -210 FKI S22W50

Solar flares on this day

C1.63

Region 8326

Number of
sunspots
Size Class Magn. Class Spot Location
15 4 80 DSO N22E25

Region 8327

Number of
sunspots
Size Class Magn. Class Spot Location
4 1 20 -10 BXO N30E28

Region 8328

Number of
sunspots
Size Class Magn. Class Spot Location
10 5 100 -20 CSO S17E33

Region 8329

Number of
sunspots
Size Class Magn. Class Spot Location
13 -1 150 -50 DSO N16E25

Region 8330

Number of
sunspots
Size Class Magn. Class Spot Location
3 60 10 DAO S20E57

Region 8331

Number of
sunspots
Size Class Magn. Class Spot Location
1 120 40 HSX N24E63

All times in UTC

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G1 - Minor geomagnetic storm

Observed Kp: 5
Threshold reached: 23:37 UTC

Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Iqaluit, NU
Nuuk
Tórshavn
Oulu, Rovaniemi
Reykjavik
Tromsø
Kiruna, Luleå
The Disturbance Storm Time index predicts moderate storm conditions right now (-63nT)

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Saturday, 22 March 2025
23:45 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 23:37 UTC

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Strong G3 geomagnetic storm watch for 23 March

Yesterday around 16 UTC an M1.2 solar flare took place around sunspot region 4028. The solar flare triggered a filament eruption which erupted from the center of the earth-facing solar disk.

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12:18 UTC - Hemispheric Power Index

The OVATION model predicts the Hemispheric Power Index to reach 75GW at 13:10 UTC


03:45 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 03:35 UTC

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03:15 UTC - Geomagnetic activity

Moderate G2 geomagnetic storm (Kp6) Threshold Reached: 02:59 UTC

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Space weather facts

Last X-flare2025/02/23X2.0
Last M-flare2025/03/21M1.2
Last geomagnetic storm2025/03/21Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
February 2025154.6 +17.6
March 2025140.3 -14.3
Last 30 days140 -11.7

This day in history*

Solar flares
12024X1.12
22024M5.2
32024M3.8
42024M3.8
51998M3.17
DstG
11969-164G4
22023-125G3
31989-106G2
41966-98G3
52024-79G2
*since 1994

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