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Coronal hole faces Earth

zondag 11 juli 2021 - 16:39 UTC

Coronal hole faces Earth

A large northward extension of the southern hemisphere polar coronal hole is currently facing our planet.

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First X-class solar flare of Solar Cycle 25

zaterdag 03 juli 2021 - 15:03 UTC

First X-class solar flare of Solar Cycle 25

An X-class solar flare (R3-moderate) has just peaked! The maximum measured X-ray flux was X1.59 to be precise and the solar flare peaked at 14:29 UTC. Sunspot region 2838 is the source of this eruption. The solar flare seems fairly impulsive and due to the location of the sunspot region, any ejecta is unlikely to be earth-directed.

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M flares, G2 geomagnetic storm watch

maandag 24 mei 2021 - 13:57 UTC

M flares, G2 geomagnetic storm watch

Our Sun has been moderately active the past few days! Sunspot region 2824 produced numerous C-class events and three M-class solar flares during the past few days. An M1.4 solar flare on Saturday, 22 May was the strongest solar flare it produced. A couple of these C and M-class solar flares were eruptive and produced coronal mass ejections which could have an earth-directed component.

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C3 solar flare with earth-directed CME

donderdag 22 april 2021 - 17:23 UTC

C3 solar flare with earth-directed CME

Sunspot region 2816 produced a long duration C3.9 solar flare which was associated with both Type II and IV radio sweeps. The solar flare peaked at 04:35 UTC and launched a coronal mass ejection into space.

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M1.1 solar flare

dinsdag 20 april 2021 - 18:26 UTC

M1.1 solar flare

Surprise surprise! Sunspot region 2816 produced an M1.1 solar flare which peaked at 23:42 UTC. This is the first M-class solar flare since 29 November and the third M-class solar flare of Solar Cycle 25 thus far. Our Sun decided to wake up as we now all of a sudden have three numbered sunspot regions on the earth-facing solar disk.

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Geomagnetic storming, coronal hole

woensdag 03 maart 2021 - 11:06 UTC

Geomagnetic storming, coronal hole

We're having a couple of very interesting days at the moment with us occasionally reaching geomagnetic storm conditions. Two days ago we managed to reach the moderate G2 geomagnetic storm threshold and earlier this morning we hit the minor G1 geomagnetic storm threshold. All of this geomagnetic activity is the result of a high speed solar wind stream from a coronal hole flowing past our planet.

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Filament eruption, G1 storm watch

maandag 22 februari 2021 - 19:10 UTC

Filament eruption, G1 storm watch

We are hopping in the way back time machine today and take you back to... Saturday. Yes... Saturday... Saturday as in two days ago. A filament eruption occurred around 11 UTC on the Sun's southern hemisphere and launched a partial halo coronal mass ejection which could impact our planet.

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Coronal hole faces Earth

donderdag 18 februari 2021 - 13:19 UTC

Coronal hole faces Earth

It's that time of the solar cycle again where coronal holes become more apparent at lower latitudes! Less than a week ago we already had a similar coronal hole facing our planet. The solar wind stream from that coronal hole caused active geomagnetic conditions on Tuesday. Right now we have yet another northward extension of the southern hemisphere polar coronal hole facing our planet today.

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Coronal hole faces Earth

vrijdag 12 februari 2021 - 13:02 UTC

Coronal hole faces Earth

Are we all ready for Valentine's Day? Got flowers, chocolate or perhaps that new car she's been talking about all year? No? No idea yet what to do with your loved one? How about watching aurora dancing above your heads? Pretty romantic right! That might be possible in a few days if you are a high latitude sky watcher because we have a coronal hole facing our planet today! We are talking about a northern extension of the southern hemisphere coronal hole and the high speed solar wind stream flowing from this coronal hole could arrive at our planet this Sunday, 14 February. Active geomagnetic conditions (Kp4) will be possible when the stream arrives.

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Coronal hole stream arrival, new alert bars

zaterdag 06 februari 2021 - 19:06 UTC

Coronal hole stream arrival, new alert bars

We are starting to see some nice geomagnetic activity building up right now as a high speed solar wind stream from a coronal hole is starting to influence our planet. The north-south direction of the IMF (Bz) is mostly southward which will fuel auroral activity at Earth. Active geomagnetic conditions (Kp4) are likely in the hours ahead.

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Ruimteweer feitjes

Laatste X-klasse uitbarsting03/07/2021X1.59
Laatste M-klasse uitbarsting04/07/2021M1.5
Laatste geomagnetische storm15/06/2021Kp5 (G1)
Zonnevlekkenloze dagen
Afgelopen 365 dagen105 dagen
202149 dagen (23%)
Laatste zonnevlekkenloze dag28/07/2021

Deze dag in de geschiedenis*

Zonnevlammen
11999M5.1
22002M4.8
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42012M2.3
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1200027G2
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