AR3664 Flaring in High Res HA & Continuum | May 8th 2024

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MalVeauX
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AR3664 Flaring in High Res HA & Continuum | May 8th 2024

Post by MalVeauX »

Hi all,


AR3664 continues to impress, its grown over night with a lot more interesting pneumbra around the umbras in the complex arrangement making for a very beautiful sunspot region to view in continuum. It's also interesting with crazy brim stone and fire in h-alpha and its currently blowing up lower class flares quite a bit. The x-class flare threat is pretty high on this one, so it may blow its top at any time. It's probably close. It hasn't simmered down in days and its growing, so we're going to likely see some x-class flares from this beast. Maybe a few. Between AR3663 and AR3664, these two spots so far will likely easily have the most x-flares for the entire cycle 25 so far in such a short period. I threw in a quick Calcium disc to test an optic at this wavelength and was pleasantly surprised (AT102ED).


B&W:


Image

Image

Image

Image

Image


False Color:


Image

Image

Image

Image


Equipment:

H-alpha:

Aries Tri-band D-ERF (1) -> 150mm F8 Double -> Baader Red 2" Filter (D-ERF 2) -> Air Spaced Etalon 1 -> Baader TZ4 4x Telecentric -> Air Spaced Etalon 2 - > ITF + 18mm BF -> IMX432 Sensor

Continuum:

150mm F8 Doublet -> Baader 2" Wedge -> ND3.0 -> Continuum5 40nm Filter -> 1.6x Barlow -> IMX290 Sensor

CaK Disc:

AT102ED (102mm F7) masked to 60mm (F12) with Lunt Cak B1200 Module -> IMX253 Sensor
(This was an experiment, at full 102mm aperture it showed some contrast loss so the lens is not great at 393nm full aperture, but when reduced to 60mm the contrast shot up very significantly and so the middle of the glass is well figured to 393nm and the filter performs better at F10 or longer anyways, much better)

Seeing was good; here's some live views from FireCapture, this is what I saw at the eyepiece, no processing here, this is the view at these scales in sub-arc-second seeing peaks.
FC_Continuum_05082024.jpg
FC_Continuum_05082024.jpg (161.93 KiB) Viewed 1032 times
FC_HA_DS_05082024.jpg
FC_HA_DS_05082024.jpg (103.79 KiB) Viewed 1032 times
Solarsetup_05082024.jpg
Solarsetup_05082024.jpg (207.48 KiB) Viewed 1032 times

My snail buddy out in the garden doing solar with me! :lol:

Snail_05082024.jpg
Snail_05082024.jpg (64.29 KiB) Viewed 1032 times

Very best,
Last edited by MalVeauX on Wed May 08, 2024 6:45 pm, edited 1 time in total.


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Re: AR3664 Flaring in High Res HA & Continuum | May 8th 2024

Post by VasilevIvan »

Great set of images, Marty! Thank you for sharing!


Best regards, Ivan.

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Re: AR3664 Flaring in High Res HA & Continuum | May 8th 2024

Post by WMoore »

Excellent session, so much to see. Nice pic of the observatory's mascot
Thanks!


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Re: AR3664 Flaring in High Res HA & Continuum | May 8th 2024

Post by KMH »

Terrific collection! That AR is quite something.

Kevin


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Re: AR3664 Flaring in High Res HA & Continuum | May 8th 2024

Post by cte »

Very good imaging. 3664 is impressive, reminds me of Carrington sunspots. Could it generate a similar event ?


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Re: AR3664 Flaring in High Res HA & Continuum | May 8th 2024

Post by MapleRidge »

Hi Marty...

These images from the 8th are excellent...well done :bow

Brian


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Re: AR3664 Flaring in High Res HA & Continuum | May 8th 2024

Post by DavidP »

Great images, Marty!
We’ve had a couple of amazing ARs lately.
I appreciate you posting the capture settings.


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Re: AR3664 Flaring in High Res HA & Continuum | May 8th 2024

Post by rigel123 »

Just an amazing collection Marty!


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Re: AR3664 Flaring in High Res HA & Continuum | May 8th 2024

Post by DeepSolar64 »

Very nice work Marty. I really love the WL view of AR13664 and AR13668. The flaring of them looks great in the Ha images of them as well.

Did you name that snail " Gary "!??

James


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Re: AR3664 Flaring in High Res HA & Continuum | May 8th 2024

Post by vineyard »

Lovely images. I like the earth in for scale against the prom - it was huge wasn't it.

Fire and brimstone is an appropriate description for the AR - it's just crackling like a beast. How big would the earth be superimposed against the AR?!


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Re: AR3664 Flaring in High Res HA & Continuum | May 8th 2024

Post by ffellah »

Terrific images, Marty. Beautiful work.

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Re: AR3664 Flaring in High Res HA & Continuum | May 8th 2024

Post by marktownley »

A lovely set of images here Marty!


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Re: AR3664 Flaring in High Res HA & Continuum | May 8th 2024

Post by MAURITS »

Excellent images Marty.


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Re: AR3664 Flaring in High Res HA & Continuum | May 8th 2024

Post by arnedanielsen »

Lovely results Marty!


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Re: AR3664 Flaring in High Res HA & Continuum | May 8th 2024

Post by AstroBees »

Every time I see your name in the post header, I know to be prepared to be blown away yet again.
You didn't disappoint this time either. Fantastic images.


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Re: AR3664 Flaring in High Res HA & Continuum | May 8th 2024

Post by MAURITS »

Great session Marty.


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