Monday, 3 April 2017 - 00:47 UTC
Solar activity was at high levels yesterday (2 April 2017) as our Sun produced four M-class solar flares! The strongest of these solar flares was an M5.7 solar flare (R2-moderate) that peaked at 20:33 UTC.
Sunday, 2 April 2017 - 09:53 UTC
Sunspot region 2644 (N14W60) does it again! It just produced a long duration M5.3 solar flare (R2-moderate) that peaked today at 08:02 UTC.
Saturday, 1 April 2017 - 22:37 UTC
Not a prank! We just had the first M-class solar flare since November last year!
Saturday, 1 April 2017 - 08:54 UTC
Sunspot region 2645 has gone Beta-Gamma-Delta! Beta-Gamma-What? Yes, Beta-Gamma-Delta. We give this classification to the most complex magnetic figuration a sunspot region can have: umbrae of opposite polarity in a single penumbra. A sunspot group with a beta-gamma magnetic configuration that contains one (or more) delta sunspots. Let's take a closer look and see if we should expect more solar flares.
Thursday, 30 March 2017 - 18:46 UTC
The sunspots have gone silent so we shift our attention once again to coronal holes! Today we have an equatorial coronal hole facing our planet and the solar wind stream flowing from it could arrive at Earth in about 3 days from now.
Wednesday, 29 March 2017 - 12:12 UTC
The coronal hole solar wind stream packed a punch last Monday as we predicted and caused two 3-hour periods where we reached the moderate G2 geomagnetic storm threshold. The northern lights put on a grand display and were seen from latitudes as low as the Netherlands, Germany and Poland in Europe and the southern lights were seen from Victoria, Australia! Below we have a small selection of images made during the past few days. The header image used in this article was made by Carita Holmberg from Grisslehamn, Sweden.
Friday, 24 March 2017 - 20:48 UTC
The coronal hole solar wind stream is now starting to wane and the auroral oval has retreated back to higher latitudes. Does that mean we are in for a long quiet period? Fortunately not as we have yet another coronal hole facing our planet today!
Tuesday, 21 March 2017 - 23:39 UTC
We reached the minor G1 geomagnetic storm threshold today thanks to the arrival of the anticipated coronal hole solar wind stream. The solar wind speed fluctuates around 600km/s and the direction of the IMF (Bz) is variable but does occasionally tip southward down to -10nT. These stats are very decent so a minor G1 geomagnetic storm watch remains in effect for the remainder of this day and tomorrow, 22 March 2017. There is however more to report so keep on reading!
Saturday, 18 March 2017 - 17:03 UTC
Solar activity remains very low today (A-class only!) as there are no sunspot regions on the earth-facing disk at the moment. This is already the 13th consecutive day without any numbered sunspot regions on the earth-facing disk and its a sight we will have to get used to as we are trending towards solar minimum. Okay, we now know that we shouldn't expect any solar flares any time soon so... what do we exactly have to look out for? Yes! Coronal holes!
Tuesday, 7 March 2017 - 13:15 UTC
Blast from the past! Do you remember these solar flares? It is today exactly five years ago that sunspot region 11429 erupted with a X5.4 solar flare. This spectacular blast was closely followed by an X1.3 solar flare from nearby sunspot region 11430.
|Predicted Kp max||4|
|M-class solar flare||1%|
|X-class solar flare||1%|
|B1.2 B1.7 B1.4 B1.5 B3.2 B5.4 B8.4|
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|Last geomagnetic storm:||2017/09/18||Kp5 (G1)|
|Number of spotless days in 2017:||56|
|Last spotless day:||2017/08/01|