Viewing archive of Wednesday, 4 August 1999 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxCM
177 -401 -1C1.57M8.6193

Sunspot regions

Region 8645

Number of
sunspots
Size Class Magn. Class Spot Location
36 9 570 80 FKI S25W55

Solar flares on this day

C6.06 C3.29

Region 8647

Number of
sunspots
Size Class Magn. Class Spot Location
22 5 270 130 DAO S18W63

Solar flares on this day

C6.39 C5.67 M1.73

Region 8649

Number of
sunspots
Size Class Magn. Class Spot Location
1 -1 10 AXX S16W80

Solar flares on this day

C2.83

Region 8650

Number of
sunspots
Size Class Magn. Class Spot Location
5 -1 40 CSO N18W18

Region 8651

Number of
sunspots
Size Class Magn. Class Spot Location
49 6 1080 -290 FKC N26W18

Solar flares on this day

C3.53

Region 8656

Number of
sunspots
Size Class Magn. Class Spot Location
10 2 60 40 DAO N19E06

Region 8657

Number of
sunspots
Size Class Magn. Class Spot Location
1 60 20 HAX S31E56

Region 8658

Number of
sunspots
Size Class Magn. Class Spot Location
2 10 AXX S25W13

Region 8659

Number of
sunspots
Size Class Magn. Class Spot Location
1 10 AXX S23E22

All times in UTC

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

Gillam, MB, Iqaluit, NU
Nuuk
The maximum X-ray flux of the past two hours is:
M4.93

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02:33 UTC - Solar flare

Moderate M4.93 flare from sunspot region 3990

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Minor R1 radio blackout in progress (≥M1 - current: M1.43)


Friday, 21 February 2025
14:54 UTC - Solar flare

Moderate M1.41 flare

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14:39 UTC - Radio Blackout

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Moderate M3.39 flare

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Space weather facts

Last X-flare2025/01/04X1.85
Last M-flare2025/02/23M4.9
Last geomagnetic storm2025/02/19Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
January 2025137 -17.5
February 2025151.4 +14.4
Last 30 days148.3 -13.8

This day in history*

Solar flares
12025M4.9
22024M2.6
32014M1.62
42024M1.5
52023M1.5
DstG
11988-97G2
21982-92G2
31990-82G1
41973-75G2
51957-73G2
*since 1994

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