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Re: The sun
Reply #630 - Feb 25^th, 2024 at 7:04am

14 Feb 2024 6.03am
Keith Strong@drkstrong·6h

THE SUN TODAY: Getting quieter?

1) SSN and area down. [910MIL 135spots

2) 4 M flares yesterday but X-ray background dropped.

3) Geospace quiet. No sign of the CMEs that were supposed to hit us today as yet.

4) 9 spot regions on the Sun, two new. Note the post flare loops on the NE limb.

5) 8 CMEs

16h

A VERY FAST BLAST: An eruption similar to that on the NE limb (see previous tweets) but this time off the SE limb, but note how much more violent it was then the earlier one. Infact there are two in this video, a second smaller one to its south from behind the limb.

spaceweather:
Solar wind
speed: 462.1 km/sec
density: 1.57 protons/cm3

X-ray Solar Flares
6-hr max: M1 2052 UT Feb12
24-hr: M6 0348 UT Feb12

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Re: The sun
Reply #631 - Feb 25^th, 2024 at 7:05am

15 feb 2024
Keith Strong@drkstrong·4h

THE SUN TODAY:

1) SNN and areas up. [1250MIL, 150 spots]

2) just 2 M1 flares with many minor C flares.

3) Geospace a little more active but no sign of the expected geomagnetic storms.

4) Nine spot regions on the disk, three of which are new (see earlier tweet). Gorgeous post flare loops on NE limb.

spaceweather.com

Solar wind
speed: 462.1 km/sec
density: 1.57 protons/cm3

X-ray Solar Flares
6-hr max: M1 2052 UT Feb12
24-hr: M6 0348 UT Feb12

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Re: The sun
Reply #632 - Feb 25^th, 2024 at 7:06am

16 Feb 2024 6.40am

Keith Strong@drkstrong·4h

THE SUN TODAY:

1) SNN and areas down slightly. [1340MIL, 140 spots]

2) No significant flares (>C5) in the last day.

3) Geospace quiet once more.

4) 14 spot regions on the disk, with many new ones (white) popping up.

5) 8 CMEs yesterday.

spaceweather.com
Solar wind
speed: 390.6 km/sec
density: 1.10 protons/cm3

X-ray Solar Flares
6-hr max: M1 1707 UT Feb15
24-hr: M1 1707 UT Feb15

16/2/2024 9.02PM
DrKStrong
2H

X FLARE! An X2.5 flare is currently in progress. It was from sunspot region AR3576 on the SW limb. This is the 26th X flare so far during solar cycle 25 and the fourth largest. Video data not yet fully available .... later, stay tuned!

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Re: The sun
Reply #633 - Feb 25^th, 2024 at 7:07am

17 Feb 2024 0600

Keith Strong@drkstrong·5h

THE SUN TODAY:

1) SSN up; areas down. [1150MIL, 150spots]

2) An M1 and X2.5 flare (see earlier tweets) both from AR3576.

3) Geospace unusually quiet.

4) 12 spotted regions on the disk, 2 new (white), note the large post flare loops on the SW limb from the X flare.

5) 11 CMEs yesterday.

spacetime.com
Solar wind
speed: 390.6 km/sec
density: 1.10 protons/cm3

X-ray Solar Flares
6-hr max: M1 1707 UT Feb15
24-hr: M1 1707 UT Feb15

(the X2.5 obviously happened after this]

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Jovial Monk

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Re: The sun
Reply #634 - Feb 25^th, 2024 at 7:08am

18 Feb 2024

No THE Sun report from Dr Strong

spaceweather.com:
Solar wind
speed: 474.5 km/sec
density: 2.94 protons/cm3
Updated: Today at 0741 UT

X-ray Solar Flares
6-hr max: C7 1834 UT Feb17
24-hr: M3 2209 UT Feb16

A RARE ERUPTION FROM THE SOUTH POLE: Most explosions on the sun happen near the equator where sunspots tend to cluster. Today, however, something blew up 90 degrees away near the sun's south pole:

The polar blast propelled a bright CME straight down, out of the plane of the solar system. No planet will be struck. Although if a comet is below the sun (comets can go there) it could have its tail ripped off by the solar storm cloud.
This rare eruption appears to be linked to an unstable polar crown filament--a twisted strand of magnetism circling the sun's south pole. Solar astronomers have known about these circular filaments for more than a century. Long-term studies show that they shrink in size near Solar Maximum, forming ever tighter circles around their respective poles.

Indeed, that's why these rare eruptions happen most often around Solar Max. Intense magnetic fields crowded together in tight spaces love to erupt. Solar Max is coming soon, so stay tuned for more polar blasts in the months ahead.

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Jovial Monk Moderator Offline Dogs not cats! Posts: 45888 Gender:	Re: The sun Reply #635 - Feb 25^th, 2024 at 7:09am 19 Feb 2024 0626 No The Sun report from Dr Strong—second day running. spaceweather.com Solar wind speed: 309.8 km/sec density: 1.46 protons/cm3 Updated: Today at 0721 UT X-ray Solar Flares 6-hr max: C2 1837 UT Feb18 24-hr: C5 0405 UT Feb18
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Jovial Monk Moderator Offline Dogs not cats! Posts: 45888 Gender:	Re: The sun Reply #636 - Feb 25^th, 2024 at 7:11am 20 Feb 2024 0812am Keith Strong@drkstrong·6h NO LONE SUNSPOT: The large spot (AR3590) that came over the NE limb yesterday has quite a few trailing spots making this a significant region. So far it has produced a few modest flares but promises to produce more and larger events.
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Jovial Monk

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Re: The sun
Reply #637 - Feb 25^th, 2024 at 7:12am

21 FEb 2024 0445
Keith Strong@drkstrong·2h

The Sun has suddenly gone very quiet with a sharp drop in sunspot number and no significant flares. Only a couple of significant CME and those in unfavorable positions on the Sun to affect Earth. This has resulted in very quiet Earth's magnetosphere with some Kp readings at zero.

spaceweather.com
Solar wind
speed: 273.9 km/sec
density: 1.59 protons/cm3

Updated: Today at 0541 UT

X-ray Solar Flares
6-hr max: C2 1556 UT Feb20
24-hr: C4 0001 UT Feb20
64 sunspots

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Jovial Monk Moderator Offline Dogs not cats! Posts: 45888 Gender:	Re: The sun Reply #638 - Feb 25^th, 2024 at 7:13am 22 Feb 2024 0708 spaceweather.com Solar wind speed: 340.0 km/sec density: 2.73 protons/cm3 Updated: Today at 0800 UT X-ray Solar Flares 6-hr max: C4 1602 UT Feb21 24-hr: C4 0217 UT Feb21 50 sunspots
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Jovial Monk

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Re: The sun
Reply #639 - Feb 25^th, 2024 at 7:14am

23 February 2024
Spaceweather.com
Solar wind
speed: 482.1 km/sec
density: 7.55 protons/cm3

Updated: Today at 0711 UT

X-ray Solar Flares
6-hr max: C9 1629 UT Feb22
24-hr: X1 2307 UT Feb21

A SUNSPOT YOU CAN SEE USING ECLIPSE GLASSES: Got eclipse glasses? If so, put them on and look at the sun. There's no eclipse today, but there's still something to see. A giant sunspot is crossing the solar disk. AR3590 is so big you can see it without magnification.

DOUBLE X-CLASS SOLAR FLARE: Big sunspot AR3590 is as dangerous as it looks. During the past 24 hours, the active region has produced two X-class solar flares, a pair of almost identical X1.8 and X1.7 explosions:

Extreme ultraviolet radiation from the flares ionized the top of Earth's atmosphere, causing shortwave radio blackouts over Hawaii (late on Feb 21st) and Australia (early on Feb. 22nd). Mariners and ham radio operators in those areas may have noticed loss of signal at all frequencies below 30 MHz.

Interestingly, neither explosion lifted a CME out of the sun's atmosphere. This means the double flares will *not* cause any geomagnetic storms on Earth.

Keith Strong@drkstrong·9h

ANOTHER X FLARE: As predicted, AR3590 produced a second X flare. This time it was an X1.7 event peaking at 06:30 UT. It looks to be an exact repeat of the earlier flare. It would make it the 10th largest so far this cycle. More to come? Probably. SC25 seems to be taking off!

23/2/2024 12.24pm
Keith Strong@drkstrong·1h

LARGEST FLARE FOR OVER 6 YEARS: Sunspot region AR3590 just produce the largest flare of Solar Cycle 25 which makes it the largest flare since 2017! It was an X6 flare. No video available as yet (soon). That is 3 X flares just today and 6 for the month so far. More to come?

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Re: The sun
Reply #640 - Feb 25^th, 2024 at 7:18am

24/2/2024 0714

Quote:

THE SUN THIS WEEK: Having major house repairs this week so posts will be limited.

1) SSN and areas up. [1410MIL, 115sunspots]

2) 3 X flares and 8 M flares in the last 3 days! All from AR3590.

3) Geospace quiet. [no CMEs from the big flares!]

4) 8 sunspot regions on the disk, note all the new ones appearing over the East limb.

spaceweather.com:

116 sunspots

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« Last Edit: Feb 26^th, 2024 at 12:31am by Jovial Monk »

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