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Region 3590


Ingolf

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Woah woah

What in the wholeworthy sun happened when i was asleep? Just woke up and see this thread expoding😅

Everything seemed normal but then i saw there was an X-Class eruption? From 3590? WOW! Didnt expect that...

 

1 hour ago, Eric said:

I most likely don’t know what I’m talking about since I just learned how to spot deltas a week ago but am I seeing a second delta spot forming here?

1106F11A-97DC-4327-B97A-E7842A5418A8.jpeg

Maybe, yes.

@Solarflaretracker200or @tniickck maybe can tell more accurately wheter its a delta or not than me lol

X1.7 again from 3590 !!!

Edited by Solar_Marcel
Typo
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2 hours ago, Eric said:

I most likely don’t know what I’m talking about since I just learned how to spot deltas a week ago but am I seeing a second delta spot forming here?

1106F11A-97DC-4327-B97A-E7842A5418A8.jpeg

Yeah, that’s a small delta. It’s just barely one though.

X1.7 is the peak and at this point it looks about as impulsive as the last X flare.

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1 minute ago, SpaceWeather5464 said:

This flare is a little longer than the last one.

I agree, just after I made my post it started flattening out a bit. Seems a bit more eruptive than the last x flare now.

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On 2/19/2024 at 6:22 PM, Ingolf said:

Second one is that 3590 will produce the biggest earth directed Flare in this SC in exactly 86 hours. Remember my words ☝️ 

The really big flare is expected in 24 hours from now 😉

 

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3 hours ago, Eric said:

I most likely don’t know what I’m talking about since I just learned how to spot deltas a week ago but am I seeing a second delta spot forming here?

1106F11A-97DC-4327-B97A-E7842A5418A8.jpeg

yep, it is a delta

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I can't remember an AR producing two X flares within 8 hours. That must be very rare.

Edit: Looks like the last time this happened was AR 2673 in September 2017.

Edited by Aten
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Are the Type II & Type IV radio emission alerts from the x flares?

I have never seen the estimated velocity so low (154 km/s) on a radio emission. Just curious 

I know that’s a dumb question because at 154km/s it would have taken 11.25 days for those emissions to reach earth so what/where are they coming from? Is the advised ev a typo?

Edited by Justanerd
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49 minutes ago, Justanerd said:

Are the Type II & Type IV radio emission alerts from the x flares?

I have never seen the estimated velocity so low (154 km/s) on a radio emission. Just curious 

I know that’s a dumb question because at 154km/s it would have taken 11.25 days for those emissions to reach earth so what/where are they coming from? Is the advised ev a typo?

It's a common confusion, but the radio emission itself travels at the speed of light, since radio waves are electromagnetic waves. For type II emissions the radio waves in question originate from electrons being accelerated by a propagating CME, with the frequency corresponding to the density of the electrons being accelerated; as the electron density is lower farther out in the corona, there's a measurable decrease in the frequency, and by measuring how fast the frequency decreases it's possible to estimate how fast the CME is propagating, which is the estimate you see. The Wikipedia article on Solar radio emissions has a little section about it:

Quote

Type II bursts exhibit a relatively slow drift from high to low frequencies of around 0.05 MHz per second, typically over the course of a few minutes. They often exhibit two distinct bands of emission that correspond to fundamental and harmonic plasma emission emanating from the same region. Type II bursts are associated with coronal mass ejections (CMEs) and are produced at the leading edge of a CME, where a shock wave accelerates the electrons responsible for stimulating plasma emission. The frequency drifts from higher to lower values because it depends on the electron density, and the shock propagates outward away from the Sun through lower and lower densities. By using a model for the Sun's atmospheric density, the frequency drift rate can then be used to estimate the speed of the shock wave.

But you're certainly right that it's not very common to see such low estimates, that one is definitely one of the lowest I've seen too. There has been some investigation into what the minimum CME speed that can possibly produce such bursts would be, and from observation it seems like the limit is around 250 km/s, so it's hard to say what's going on in this case. I would assume the most likely case is that the estimate is off and that the CME is probably a bit faster.

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just from a laymans perspective i feel like any developing deltas will POP pretty quickly just cos of the largeness of the thing

that light blue dot in the middle of the big dark blue dot tho..... if that keeps changing colour i'd be wondering a bit more

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59 minutes ago, cheebee said:

 

that light blue dot in the middle of the big dark blue dot tho..... if that keeps changing colour i'd be wondering a bit more

its light because the field there is strong, distorting the image. we had that 2-3 times before i think so theres a big chance you were not here yet since its rarer :) 

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Not a fan of how it is popping off flares as it starts looking at us 😅
Looks like all of our predictions were a bit late on this one.


Size of 1220 though, can anyone confirm what @Misaka said about this being the largest of sc25?

4 minutes ago, MinYoongi said:

I dont think so. @tniickck had a chart in here a few days ago, but i dont remember it fully.

Woops, didn't see this reply pop up. Anyone know where to find this chart?

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16 minutes ago, Misaka said:

Dang, here it is!

Also, I realize the probability is extremely low, but what are the chances the recent X1.6 had an impact on the ongoing communications outages for cellular data? I'm just looking at some graphs and it seems like they happened at nearly the same time, a bit later on the outages side. Just speculating..

https://www.space.com/sun-2-solar-flares-february-22-2024-cell-phone-outages

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