Sol (Sun) and its phenomena

[Ellipse]

Radiation from the flare caused a shortwave radio blackout over North America. Ham radio operators may have noticed loss of signal at frequencies below 20 MHz.

This is not reflected by the Kp index (magnetic perturbation on Earth), it was low on the 15 and still low for the moment. I wonder why it's not correlated.



Interesting note made by Stefan about the current coronal hole and the potential solar flare interaction:

"They are open regions in the solar corona where the plasma density is low, the temperature is low, and the magnetic field streams out really nicely into interplanetary space. This is now about to connect to the Earth in a pretty strong way and that's expected to give us some G1 potentially even G2 geomagnetic storming. The scale rating goes to 5. And this is a coronal hole and emits a high speed stream. And so if we get a large explosion from sunspot group 4114 then that could reach the Earth faster than normal because the solar wind density is likely to be lower and also already moving along at a higher velocity. And so that could potentially amplify the effects of a solar storm launch from 4114."

The update from SpaceWeatherNews:

More should be expected today based on the size and magnetic complexity of the sunspots. While the CME production thus far will not be anything major for Earth, that could change with any single event and you can see behind the flashing sunspots here come several large plasma filaments as well. We're going to be in eruption watch mode for the next several days here as these elements turn through the Earth facing heliographic longitudes with the northern sunspot taking the top alert today. And not just because it's the one that has been making the flares and CMEs, but because its magnetic complexity suggests it should continue to do so until it decays. Tight mixing of polarity umbras throughout the central region, delta class zone remaining, where eyes open for more flares today.

Source.


And about the subject of aurora, we have a new view of recent aurora captured from the ISS and just posted by astronaut Jonny Kim:

 

[Olivierlejardinier]

This is not reflected by the Kp index (magnetic perturbation on Earth), it was low on the 15 and still low for the moment. I wonder why it's not correlated.

The disturbances of the Kp index might show up today if any.
Meanwhile sunspot AR 14114 launched an X1.3 flare:



Comments from spaceweather's chat:

7 hours ago

I hate to burst everyone’s bubble, but judging initial frames from SUVI 195 I suspect the X1.3 flare is non-eruptive, or minimally eruptive at most. Waiting for dimming detection imaging to confirm.

I don't think there will be a CME. The character is again impulsive, above are the magnetic lines - the cage. If it were more powerful, it could break through. We'll wait for more pictures.

Close-up of the flare, here.

 

[Ellipse]

Finally the sunspot 4114 is soon leaving Earth sight and nothing splashed on us. However a new sunspot zone is coming (spots on the left).

"Things went pretty quiet pretty fast. Following the X-class flare we reported yesterday, the Sun has done virtually nothing. No significant flares or eruptions, but plenty to watch and the watch level is in fact rising. We still have sunspots even as the northern group begins to depart. The southern group is a touch of instability away from flaring sequences in its own right. Got eyes there, especially at the umbral motion level. We still have lots of plasma filaments and in this view here, can also see the next coronal hole coming, trans-equatorial at the left side, coming into face Earth late this weekend and early next week."

Source

 

[Ruth]

Stefan talks about the latest flares from the Sun. Hawaii gets hit again! Probably forcasting more eruptions from Kilauea.

 

[Olivierlejardinier]

Stefan talks about the latest flares from the Sun. Hawaii gets hit again! Probably forcasting more eruptions from Kilauea.

Like the other X flares from this sunspot, this one seems to have no major CME associated yet, it was very impulsive.

(Spaceweather.com) The flare itself did not launch a CME into space. However, the explosion appears to have destabilized a magnetic filament in the sun's southern hemisphere. That massive filament is erupting now, and it may produce the CME that the flare did not.

 

[Ellipse]

The magnetism arriving on Earth on past days was pretty strong as we can see on the Kp-index record. So the planet was charged again.


Source

 

[JGeropoulas]

Here's a great photo of plasma from Hurricane Barry streaming up into the ionosphere.

 

[Ellipse]

With the rotation of the Sun, we are facing again the coronal hole which seems bigger than ever.



Source:

https://twitter.com/x/status/1943471228850749810

 

[Puma]

The sun has released a 160,000-mile long plasma filament from the southwest limb. It looks like an arm touching the sun.

https://twitter.com/x/status/1944841410999423311