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Small coronal hole faces Earth

lördag 10 juni 2017 - 09:08 UTC

Small coronal hole faces Earth

We're in a really quiet space weather period at the moment and there were no major space weather events the past week.

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Strong G3 geomagnetic storm

söndag 28 maj 2017 - 14:50 UTC

Strong G3 geomagnetic storm

A coronal mass ejection arrived at our planet yesterday and managed to cause an unexpectedly strong geomagnetic storm. The strong G3 geomagnetic storm threshold was reached today at 04:19 UTC.

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Weak CME could give us a glancing blow

onsdag 24 maj 2017 - 13:30 UTC

Weak CME could give us a glancing blow

A weak coronal mass ejection (CME) was launched yesterday by an eruption near the center of the earth-facing solar disk. The resulting coronal mass ejection might have an earth-directed component.

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Failed storm prediction, Next coronal hole

torsdag 18 maj 2017 - 13:22 UTC

Failed storm prediction, Next coronal hole

The NOAA SWPC had a moderate G2 geomagnetic storm watch in effect during the past few days but we unfortunately haven't even reached the minor G1 geomagnetic storm level. The G2 geomagnetic storm watch from the NOAA Space Weather Prediction Center was a result of a possible coronal mass ejection (CME) impact, something we indeed never mentioned on the site or on our social media pages. We did not believe this solar storm had an earth-bound component so choose to not mention it, a strategy that proved to be the right one. A minor G1 geomagnetic storm was however predicted due to a coronal hole solar wind stream but the stream was weaker than expected and only caused active geomagnetic conditions (Kp4) on 15 May. We are however getting another chance to reach geomagnetic storm levels thanks to yet another coronal hole.

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Coronal hole faces Earth

lördag 13 maj 2017 - 08:40 UTC

Coronal hole faces Earth

Space weather has been very quiet for weeks now. Solar activity has been very low (A and B-class activity only) ever since 19 April and the last geomagnetic storm was a long time ago as well: 23 April. There were pretty much no interesting space weather events to report since that time but today we finally have something interesting to report. It might not be the biggest news we have ever brought to you (literally) but we take anything at the moment! It is a small coronal hole that is facing our planet today and it is now sending an enhanced solar wind stream towards us which could spark some nice aurora in a few days from now.

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Coronal hole faces Earth

fredag 21 april 2017 - 09:58 UTC

Coronal hole faces Earth

Sunspot region 2651 remains fairly quiet with only some B-class activity yesterday. It had a small magnetic delta structure yesterday morning but this has decayed leaving not enough magnetic complexity for strong flares. That doesn't mean we should forget about this region as it can still regain some magnetic complexity which would increase the odds of seeing a strong solar flare but for now we should not expect much fireworks from it. But sunspot region 2651 aside, this sunspot region is not our main point of interest in this news article. We have a very familiar solar feature facing our planet right now: a large coronal hole that I'm sure you will recognize from last time around.

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G2 storm, Sunspot region 2651

torsdag 20 april 2017 - 09:31 UTC

G2 storm, Sunspot region 2651

Moderate G2 geomagnetic storm conditions were observed this night due to persisting coronal hole solar wind stream influences. Conditions remain favorable for more geomagnetic storming likely up to the minor G1 storm level in the coming hours.

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Old sunspot region 2644 is back!

tisdag 18 april 2017 - 21:50 UTC

Old sunspot region 2644 is back!

The remnants of old sunspot region 2644 (which was responsible for seven M-class solar flares during the first few days of this month) have now rotated back onto the earth-facing solar disk. It should receive sunspot number 2651 later today from the NOAA SWPC.

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Small coronal hole faces Earth

fredag 14 april 2017 - 21:17 UTC

Small coronal hole faces Earth

A minor coronal hole located on the Sun's southern hemisphere is facing Earth today.

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Quiet times

torsdag 13 april 2017 - 00:26 UTC

Quiet times

Quiet times. Not a whole lot to report about the past few days but some things caught our attention. A short roundup:

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Höga breddgrader 25% 20%
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Senaste X-utbrottet:05/05/2015X2.7
Senaste M-utbrottet:03/04/2017M5.8
Senaste geomagnetiska stormen:16/06/2017Kp5 (G1)
Dagar utan solfläckar i 2017:42
Senaste dag utan solfläckar:12/06/2017

I dag i historien*

Solutbrott
12015M7.9
22000M2.5
32000M1.9
42000C7.7
51998C6.5
ApG
1201532G2
2200316
3199516G1
4200511
5200810
*sedan 1994