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X1.1 solar flare

pátek 28. března 2025 18:06 UTC

X1.1 solar flare

We have only just started to relax following the moderate G2 geomagnetic storm conditions from a massive coronal hole and suddenly... bam... our Sun surprises us all with a X1.1 solar flare (R3-strong) that came from sunspot region 4046 which is just rotating into view on the east limb.

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Coronal hole faces Earth

pondělí 24. března 2025 16:59 UTC

Coronal hole faces Earth

The anticipated strong G3 geomagnetic storm watch never materialized as the coronal mass ejection that was supposed to arrive early yesterday didn't arrive until today just past midnight UTC. The impact was very lackluster with the Bt (total strength of the IMF) increasing to a moderate 15nT at best and the solar wind speed reaching just 420km/s. A far cry from the anticipated 700 to 800km/s. That once again goes to show how hard it is to forecast space weather events and any resulting geomagnetic conditions. We remain under the influence of the CME and high latitude sky watchers should remain alert for some nice aurora displays but middle latitude sky watchers will probably have to wait for the next opportunity. 

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Strong G3 geomagnetic storm watch for 23 March

sobota 22. března 2025 17:58 UTC

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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Coronal hole faces Earth

středa 5. března 2025 21:47 UTC

Coronal hole faces Earth

A coronal hole is facing our planet today which is sending a high speed solar wind stream towards us which could cause enhanced geomagnetic conditions (and thus aurora!) in the days ahead.

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X2.0 solar flare from sunspot region 4001

neděle 23. února 2025 19:55 UTC

X2.0 solar flare from sunspot region 4001

It has been 53 long days but we have finaly seen another X-class solar flare coming from the Sun today. Sunspot region 3947 produced an X1.8 solar flare on 4th of January and since that day... silence... but today departing sunspot region 4001 produced an X2.0 solar flare.

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Coronal hole faces Earth, Minor G1 geomagnetic storm watch

pátek 7. února 2025 19:26 UTC

Coronal hole faces Earth, Minor G1 geomagnetic storm watch

Geomagnetic conditions have been relativity quiet lately with no strong geomagnetic storms to speak of. Coronal holes are however making a return and we are seeing them more regularly appearing and influencing the weather in space around Earth and thus the aurora dancing above our heads.

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Double coronal holes face Earth

středa 29. ledna 2025 15:19 UTC

Double coronal holes face Earth

A coronal hole is facing our planet today which is sending a high speed solar wind stream towards us which could cause enhanced geomagnetic conditions (and thus aurora!) in the days ahead.

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Coronal hole faces Earth

čtvrtek 16. ledna 2025 17:53 UTC

Coronal hole faces Earth

A coronal hole is facing our planet today which is sending a high speed solar wind stream towards us which could cause enhanced geomagnetic conditions (and thus aurora!) in the days ahead.

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Sunspot region 3947, X-class solar flares

sobota 4. ledna 2025 17:46 UTC

Sunspot region 3947, X-class solar flares

Solar activity has been on the rise again thanks to flaring activity coming from sunspot region 3947. It has been responsible for multiple M-class events and three low-level X-class events including an X1.8 solar flare today that peaked at 12:48 UTC.

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Two earth-directed coronal mass ejections

pondělí 30. prosince 2024 19:31 UTC

Two earth-directed coronal mass ejections

Our Sun remains fairly active today but no coronal mass ejections were launched today with a clear earth-directed component. We do however want to talk about yesterday's events again as more data and opinions have emerged...

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Fakta o počasí ve vesmíru

Poslední X-záblesk28. 03. 2025X1.1
Poslední M-záblesk01. 04. 2025M2.5
Poslední geomagnetická bouře27. 03. 2025Kp5 (G1)
Dny bez skvrn
Poslední den bez skvrn08. 06. 2022
Průměrný měsíční počet slunečních skvrn
února 2025154.6 +17.6
dubna 2025147 -7.6
Posledních 30 dnů129.8 -18.9

Tento den v historii*

Sluneční erupce
12001X1.77
22017M8.35
31999M6.2
42001M3.57
52017M1.81
DstG
11979-168G4
21960-151G3
31992-105G2
42004-104G2
51994-103G3
*od roku 1994

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