jeudi 14 septembre 2017 - 22:11 UTC
Solar activity has plunged to very low levels with the disappearance of sunspot region 2673.
mardi 12 septembre 2017 - 19:54 UTC
The X8.2 coronal mass ejection has arrived. A weak impact was observed at 19:29 UTC with a minor increase in the solar speed, density and the total strength of the interplanetary field (Bt). This is without a doubt the glancing blow arrival of the X8.2 coronal mass ejection as the low energy protons measured by ACE/EPAM peaked at the moment of impact, a classic sign of a CME arrival.
lundi 11 septembre 2017 - 23:01 UTC
A southern extension of the northern hemisphere polar coronal hole is facing our planet today. It is the same coronal hole that caused minor G1 geomagnetic storm conditions for four days last month.
lundi 11 septembre 2017 - 16:42 UTC
Yesterday's X8.2 (R3-strong) solar flare from sunspot region 2673 was one of the most spectacular solar flares we have ever seen. Not only was this the second strongest solar flare of the current solar cycle, it also launched an extremely fast and broad coronal mass ejection. What a way to say goodbye! Let's hope it survives its 2 week journey on the far side of the Sun!
dimanche 10 septembre 2017 - 16:18 UTC
Sunspot region 2673 departs in style! The region is now behind the western limb but it still managed to produce it's fourth X-class solar flare: it erupted with an X8.28 (R3-strong) solar flare that peaked at 16:06 UTC.
vendredi 08 septembre 2017 - 03:37 UTC
The X9.3 coronal mass ejection has arrived at Earth and boy does it pack a punch! While the M5.5 coronal mass ejection turned out to be a huge dissapointment, the X9.3 coronal mass ejection is much stronger than expected and we are seeing some of the strongest geomagnetic storming of the current solar cycle.
jeudi 07 septembre 2017 - 17:35 UTC
Solar activity is once again at high levels. Sunspot region 2673 continues to be very active as it rotates towards the west limb. Today (thus far!) it managed to produce a couple of M-class solar flares and an X-class solar flare.
jeudi 07 septembre 2017 - 03:31 UTC
While we were catching some much needed sleep, the coronal mass ejection from Monday's M5.5 solar flare arrived at Earth. Our alert system detected the impact and send out a tweet and a push alert when the shock arrived at DSCOVR around 23:08 UTC.
mercredi 06 septembre 2017 - 21:09 UTC
The wait is over. We finally have a complete set of SOHO/LASCO coronagraph images from today's memorable X9.3 solar flare. If you missed today's space weather events be sure to read this news article before you continue reading here.
mercredi 06 septembre 2017 - 16:28 UTC
What a day! The strongest solar flare of solar cycle 24 erupted today at 12:02 UTC and of course it was sunspot region 2673 that took center stage. It was a memorable X9.33 solar flare (R3-strong radio blackout) which was highly eruptive as well. We have to go all the way back to 5 May 2015 to find the last time we had an X-class solar flare and it has been 12 years ago since we had a solar flare which was stronger than today's X9.3 event! Not bad considering we are already in the declining phase of solar cycle 24!
|Kp prévisionnel max||3|
|Éruptions solaires classe-M||1%|
|Éruptions solaires classe-X||1%|
|B1.2 B1.7 B1.4 B1.5 B3.2 B5.4 B8.4|
|Phase de la Lune|
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|Dernière classe X:||10/09/2017||X8.2|
|Dernière classe M:||09/09/2017||M1.1|
|Dernier orage géomagnétique:||18/09/2017||Kp5 (G1)|
|Nombre de jours sans taches solaires en 2017:||56|
|Dernier jour sans taches solaires:||01/08/2017|