Viewing archive of Thursday, 23 July 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
139 -60 -1B4C1.894

Sunspot regions

Region 8270

Number of
sunspots
Size Class Magn. Class Spot Location
2 -4 40 -60 HSX S24W86

Region 8273

Number of
sunspots
Size Class Magn. Class Spot Location
1 0 AXX S24W68

Region 8274

Number of
sunspots
Size Class Magn. Class Spot Location
3 -2 60 -30 CSO S20W76

Region 8276

Number of
sunspots
Size Class Magn. Class Spot Location
1 -1 0 AXX S21E19

Region 8277

Number of
sunspots
Size Class Magn. Class Spot Location
9 -3 110 10 DAO S14W54

Region 8278

Number of
sunspots
Size Class Magn. Class Spot Location
5 2 20 10 BXO S27E26

Region 8279

Number of
sunspots
Size Class Magn. Class Spot Location
6 4 30 20 DAO N27E20

Region 8280

Number of
sunspots
Size Class Magn. Class Spot Location
8 7 340 210 EKO S21E63

Solar flares on this day

C1.89

Region 8281

Number of
sunspots
Size Class Magn. Class Spot Location
7 6 30 30 CRO N17E59

Solar flares on this day

C1.56

Region 8282

Number of
sunspots
Size Class Magn. Class Spot Location
3 10 BXO N33E67

All times in UTC

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

Reykjavik

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

Tórshavn
Oulu, Rovaniemi, Kuopio, Sodankylä, Utsjoki
Kirkenes, Tromsø, Trondheim
Arkhangelsk, Murmansk
Kiruna, Luleå, Sundsvall, Umeå
The solar wind speed is currently moderately high (578 km/sec.)

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Latest alerts

20:30 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 20:20 UTC

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20:24 UTC - Solar flare

Moderate M1.05 flare

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20:09 UTC - Radio Blackout

Minor R1 radio blackout in progress (≥M1 - current: M1.05)


10:00 UTC - Hemispheric Power Index

The OVATION model predicts the Hemispheric Power Index to reach 78GW at 10:32 UTC


04:15 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 04:05 UTC

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Space weather facts

Last X-flare2025/03/28X1.1
Last M-flare2025/04/05M1.0
Last geomagnetic storm2025/04/04Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
March 2025134.2 -20.4
April 2025148 +13.8
Last 30 days130.7 -14.4

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

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