Viewing archive of Friday, 7 August 2015 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxC
95 151 1B6.57C7.812

Sunspot regions

Region 12393

Number of
sunspots
Size Class Magn. Class Spot Location
1 20 HAX N18W46
HMIIF
HMIBC

Region 12394

Number of
sunspots
Size Class Magn. Class Spot Location
7 -5 100 -20 CAO N11W25
HMIIF
HMIBC

Solar flares on this day

B9.22 C2.97

Region 12395

Number of
sunspots
Size Class Magn. Class Spot Location
1 20 -10 HAX N12E25
HMIIF
HMIBC

Region 12396

Number of
sunspots
Size Class Magn. Class Spot Location
20 550 290 EKC S17E15
HMIIF
HMIBC

Solar flares on this day

C6.85 B9.24 C1.64 C1.17 C2.59 C2.69 C2.3 C4.87 C7.79 C1.51 C1.51 C2.44

Region 12397

Number of
sunspots
Size Class Magn. Class Spot Location
1 -2 10 -10 HAX S11W54
HMIIF
HMIBC

All times in UTC

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G1 - Minor geomagnetic storm

Observed Kp: 5
Threshold reached: 23:19 UTC

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

Reykjavik

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

Tórshavn
Oulu, Rovaniemi, Sodankylä, Utsjoki
Kirkenes, Tromsø, Trondheim
Murmansk
Kiruna, Luleå

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

Kuopio
Bergen
Arkhangelsk
Sundsvall, Umeå

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

Tampere
Petrozavodsk
The solar wind speed is currently moderately high (551.7 km/sec.)
The strength of the interplanetary magnetic field is moderate (10.81nT), the direction is North (6.62nT).
The Disturbance Storm Time index predicts moderate storm conditions right now (-73nT)

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Latest alerts

23:30 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 23:17 UTC

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21:03 UTC - Hemispheric Power Index

The OVATION model predicts the Hemispheric Power Index to reach 75GW at 21:49 UTC


13:15 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 13:07 UTC

alert


12:33 UTC - Hemispheric Power Index

The OVATION model predicts the Hemispheric Power Index to reach 75GW at 13:21 UTC


00:15 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 23:59 UTC

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Space weather facts

Last X-flare2025/03/28X1.1
Last M-flare2025/04/01M2.5
Last geomagnetic storm2025/03/27Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
March 2025134.2 -20.4
April 2025143 +8.8
Last 30 days129.8 -16.3

This day in history*

Solar flares
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32001M2.91
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DstG
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*since 1994

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