Viewing archive of Friday, 9 July 2021 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxC
231 1A7.67C7.023

Sunspot regions

Region 12839

Number of
sunspots
Size Class Magn. Class Spot Location
1 10 AXX N19W27
HMIIF
HMIBC

Solar flares on this day

B1.5

Region 12840

Number of
sunspots
Size Class Magn. Class Spot Location
2 10 BXO N27W0*
HMIIF
HMIBC

Solar flares on this day

B1.9 B1.2 B1.1 B1.8 B1.5 B2.1 B2.1 C6.0 C7.0 B1.3 B1.3 B1.2 B1.2 B3.9 B8.4 C4.8 B1.2 B1.5

Region 12841

Number of
sunspots
Size Class Magn. Class Spot Location
2 20 BXO S18E59
HMIIF
HMIBC

Solar flares on this day

B5.1 B1.5

All times in UTC

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G1 - Minor geomagnetic storm

Observed Kp: 5
Threshold reached: 21:40 UTC
The density of the solar wind is moderate (21.47 p/cm3)
The strength of the interplanetary magnetic field is moderate (13.51nT), the direction is North (5.4nT).
The Disturbance Storm Time index predicts strong storm conditions right now (-110nT)

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Latest alerts

21:45 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 21:36 UTC

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21:00 UTC - Geomagnetic activity

Severe G4 geomagnetic storm (Kp8) Threshold Reached: 20:55 UTC

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19:45 UTC - Geomagnetic activity

Strong G3 geomagnetic storm (Kp7) Threshold Reached: 19:25 UTC

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19:00 UTC - Geomagnetic activity

Moderate G2 geomagnetic storm (Kp6) Threshold Reached: 18:38 UTC

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18:45 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 18:28 UTC

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Space weather facts

Last X-flare2025/03/28X1.1
Last M-flare2025/04/15M1.2
Last geomagnetic storm2025/04/15Kp6+ (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
March 2025134.2 -20.4
April 2025124.1 -10.1
Last 30 days122.5 -17.8

This day in history*

Solar flares
12002M3.66
22012M2.54
32001M1.68
42014M1.47
52002M1.33
DstG
12015-88G2
21973-79G2
32000-78
41971-73
52024-65G1
*since 1994

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