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Jovial Monk Moderator Offline Dogs not cats! Posts: 45888 Gender:	Re: The sun Reply #45 - Feb 17^th, 2023 at 6:23am Quote: Keith Strong@drkstrong LARGE SUNSPOT COMING OVER NE LIMB. It is possibly the return of sunspot region AR3201. It has already produced some flaring. https://pbs.twimg.com/media/FpE_125WIAYyhym?format=png&name=small
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Jovial Monk Moderator Offline Dogs not cats! Posts: 45888 Gender:	Re: The sun Reply #46 - Feb 17^th, 2023 at 10:13pm Quote: Keith Strong@drkstrong · 7h CME WATCH - 2023.02.16: As predicted yesterday the streamer in the SW erupted to produce a large, slow CME but likely too far south to be affecting the Earth. Then there was a very fast CME off the NW limb. Lastly a slow, faint one off the NE limb. https://twitter.com/i/status/1626441498504880132
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Jovial Monk

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Re: The sun
Reply #47 - Feb 18^th, 2023 at 5:43am

Quote:

Keith Strong@drkstrong
THE SUN TODAY: 1) Sunspot number drops to 90. 2) Two C9 flares both long duration events plus a host of smaller C flares 3) STEREO reports that more active regions to come both NE and SE 4) Sunspot groups generally decaying. New region (or is it 2?) on NE limb 5) 8 CMEs yesterday

And:

Quote:

Keith Strong@drkstrong
·
6h
Gorgeous Loop Arcade Forms Long-Duration Event. An LDE C9 flare occurred in sunspot group AR3223 yesterday at about 12:00 UT. An LDE usually implies a coronal mass ejection. The arcade forms as the disrupted coronal fields blown open by the CME reconnect releasing energy.

https://twitter.com/i/status/1626564145461051392

and:

Quote:

Keith Strong@drkstrong

C9 LDE FLARE (PART 2): A second similar event to the first LDE (see previous tweet) occurred on the NE limb. However, this flare is seen from the side so gives us a different perspective. Note how high the arcade grows compared to the Earth (inset). You can also see the eruption.

https://twitter.com/i/status/1626566318047612930

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Jovial Monk

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Re: The sun
Reply #48 - Feb 18^th, 2023 at 12:55pm

Quote:

Keith Strong@drkstrong
·
37m
LARGEST FLARE IN A DECADE! We just had an X2.28 flare making it not only the largest flare so far this cycle but the largest flare since 29th October 2013 (near the peak of SC24). It occurred on the NE limb from sunspot region AR3229 and peaked at 20:22 UT on Friday 17th February

https://twitter.com/i/status/1626767422496681985

Then

Quote:

CORRECTION: This isn't the largest flare in a decade (see earlier tweet). I forgot that there were two large X flares in September 2017. So, it was the largest flare in 6 years. SC25 has produced 14 X flares compared to just 9 by the same stage of SC24. Stay tuned for more flares

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Jovial Monk

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Re: The sun
Reply #49 - Feb 18^th, 2023 at 12:57pm

Quote:

Keith Strong@drkstrong
·
23m
THE CME FROM THE X FLARE: A few minutes after the X flare, a CME from the event appeared in the SOHO LASCO C2 field of view showing what an energetic event this was. Fortunately, it is too far east to affect the Earth significantly. Warning: in a week or so that wont be the case!

https://twitter.com/i/status/1626771477419663360

—In a week or so the CME might hit Earth? Oh dear, that can’t be good!

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Re: The sun
Reply #50 - Feb 18^th, 2023 at 3:05pm

Well, one of the flares did take out some communications already!

Quote:

Keith Strong@drkstrong
·
4m
FLARE KNOCKS OUT RADIO COMMUNICATIONS: Radio communications below 5 MHz were knocked out by the X2.28 flare (see earlier tweets) over a large part of western N. and S. America and the Pacific Ocean.

https://pbs.twimg.com/media/FpOU0IVX0AArE1i?format=png&name=small

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Jovial Monk Moderator Offline Dogs not cats! Posts: 45888 Gender:	Re: The sun Reply #51 - Feb 18^th, 2023 at 6:34pm X3 flare on 17 Feb 2023. Largest Xflare in six years. NOT a quiet sun, NOT a GSM! SC25 has produced 14 X flares compared to just 9 by the same stage of SC24. Stay tuned for more flares—Dr K. Strong
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Re: The sun
Reply #52 - Feb 19^th, 2023 at 5:07am

Sun continues active. Idiots on Twitter still natter of a GSM but even these nutcases seem to be getting the idea that the sun might be awake and active, if not super active, in SC25 Grin

Quote:

Keith Strong@drkstrong
·
6h
THE SUN TODAY: 1) SSN up to 120. 2) Long duration X2 flare - 18 hours and still burning! No other significant flares 3) Perhaps more to come over SE limb 4) The X flare was from sunspot region AR3229 (see earlier tweets). New large sunspot coming over SE limb. 5) 6 CMEs yesterday

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Re: The sun
Reply #53 - Feb 19^th, 2023 at 5:08am

Quote:

Keith Strong@drkstrong
·
6h
CORONAL HOLE ALERT: There is a coronal hole (the dark area near Sun center) that is rotating into the zone that is well connected to the Earth. Coronal holes produce high-speed solar wind that can cause geomagnetic storms. but this is small enough that it should not be a problem.

There was a bigger one a few weeks ago, no big problems arising tho some great auroras in NH.

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Jovial Monk Moderator Offline Dogs not cats! Posts: 45888 Gender:	Re: The sun Reply #54 - Feb 19^th, 2023 at 5:51am Quote: Keith Strong@drkstrong · 15m 24 hours and the X flare site is still glowing. X-ray background not returned to base level yet https://pbs.twimg.com/media/FpRd3-EXgAAan41?format=png&name=small
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Re: The sun
Reply #55 - Feb 19^th, 2023 at 5:53am

Quote:

Keith Strong@drkstrong
·
6h
A BEAUTIFUL JET: The active region near the NE limb (AR3229) just produce this elegant jet of plasma high into the solar corona. The temperature of this glowing plasma is about 50,000K which is comparatively cool for the corona! Not how high it goes using the earth as a measure.

https://twitter.com/i/status/1626933269500395521

50,000°K is “cool” Grin

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Re: The sun
Reply #56 - Feb 19^th, 2023 at 3:50pm

Quote:

Keith Strong@drkstrong
·
3h
CME WATCH - 2023.02.18: There are 3 spectacular coronal mass ejections off the east limb. A faint one off the south pole (polar crown filament erupting)? Then right at the end of the video it seems that the coronal streamers off the SW limb are about to erupt.

https://twitter.com/i/status/1627128234079838208

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Re: The sun
Reply #57 - Feb 20^th, 2023 at 5:54am

Quote:

Keith Strong@drkstrong

AURORA ALERT:

Solar wind models of the coronal mass ejection from the X2 flare suggest that tomorrow (20th) will produce some bright aurora at high latitudes. The models show the western edge of the CME just brushing by the Earth at about 14:00 UT.

https://pbs.twimg.com/media/FpU8fI8XsAAz48k?format=jpg&name=small

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Jovial Monk

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Re: The sun
Reply #58 - Feb 20^th, 2023 at 5:58am

Quote:

Keith Strong@drkstrong

THE SUN TODAY:
1) SNN still at 120.
2) X-ray background down to C1 level. Three medium class C flares.
3) Perhaps something is coming over the NE limb in a day or two.
4) All the C flares were from AR3229 in the NW. A tiny new spot emerged in the SE (white).
5) 10 CMEs yesterday.

Quote:

Keith Strong
@drkstrong
·
6h
ANOTHER HUGE JET: Sunspot region AR3229 produced another spectacular coronal jet but this time much larger than the last. The region is much further onto the solar disk so any height structured is more foreshortened. This jet soars out of the AIA field of view it gets so high.

https://twitter.com/i/status/1627300433873055744

Quote:

Keith Strong@drkstrong
·
6h
100,000 MPH! The long, dark structure is a filament on the disk of the Sun. It starts to get active and sends a pulse of plasma along its length. I estimate the speed of that flow to have been over 100,000 mph (170,000 km/h)!

https://twitter.com/i/status/1627303324176289793

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Jovial Monk

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Re: The sun
Reply #59 - Feb 20^th, 2023 at 5:31pm

Quote:

Keith Strong@drkstrong
·
5h
NEW SPOTS EMERGING: A group (perhaps 2) of tiny spots emerging and growing rapidly over the last day. It started as a group of 2 tiny pores but then another group appear to their SE and form much larger spots. They may continue to grow in the next day or two into a bigger region.

Plenty of life in this sun. No GSM this cycle, that is for sure!

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