March 20th in Ha and Ca II K

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Carbon60
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March 20th in Ha and Ca II K

Post by Carbon60 »

The seeing conditions were less than ideal this morning, but stable enough at times to capture some close views in Ha and Ca II K, although most of my data ended up in the bin as a blurred mess.

First up is a full disk in Ha. There's almost nothing to see at this scale, except for a small newly formed active region towards the eastern limb. There were no filaments that I could see and only a couple of faint proms that are missing off this image.

Image20200320_Ha_FD by Stuart Green, on Flickr

The active region and associated plage is more discernible in this calcium II K image taken on a 72mm f6 refractor and B600 Lunt CaK module with an omega filter and Baader CaK line.

Image20200320_FD_CaK_Colour by Stuart Green, on Flickr

Looking more closely in Ha, out of 8 SERs this is the only one that survived processing to give something half decent. It's a little active region, but I'm not entirely sure where. This was captured using my 150/Lunt 35 mod.

Image20200320_Chromosphere_Ha by Stuart Green, on Flickr

Likewise in Ca II K I was struggling to achieve sharp focus and capture usable SER files. This one was taken on my Tecnosky 125mm with a B1800 CaK module.

Image20200320_CaK_Chromosphere_Colour by Stuart Green, on Flickr

Thanks for looking.

Stu.


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Re: March 20th in Ha and Ca II K

Post by Montana »

Nice collection Stuart :bow :hamster: I struggled today too, will post in a minute. However there is tomorrow too :)

Alexandra


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Re: March 20th in Ha and Ca II K

Post by eroel »

Stu:
Beautiful crisp and clean images.
I tried to image today, but it was hazy and with jumping seeing.
Lets see what I got as soon as I process the session. :( }
Good day and keep well,
Eric.


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Re: March 20th in Ha and Ca II K

Post by rsfoto »

Hi Stu,

CaK always help0s to see what isstarting to boil ...

Rainer


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Re: March 20th in Ha and Ca II K

Post by MapleRidge »

Great shots Stuart...nice to see a few sets escaped the rubbish tip ;)

Brian


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Re: March 20th in Ha and Ca II K

Post by DeepSolar64 »

Very nice view Stuart. Fighting clouds today I could never manage to see that tiny AR. CaK shows it very well!

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Re: March 20th in Ha and Ca II K

Post by JochenM »

Conditions/seeing has been challenging here as well.

Still a very good result though, Stu. Nice work.


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Re: March 20th in Ha and Ca II K

Post by krakatoa1883 »

Great images are usual, Stu, H alpha at full res is impressive.


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Re: March 20th in Ha and Ca II K

Post by Carbon60 »

Many thanks everyone.

It was supposed to be sunny today, all day.... however, it looks like the clouds are set in for the duration. SAT24 shows a broad band up and down the UK with the wind from the east not making any headway pushing them out to the west.

Ah well, there’s always tomorrow.

Thanks again and stay safe, everyone.

Stu.


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Radio meteor detector.
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Re: March 20th in Ha and Ca II K

Post by ffellah »

A beautiful set of images, Stu. Very clean FDs and great close up of the chromosphere. Well done !

Franco :bow :bow


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Re: March 20th in Ha and Ca II K

Post by Astrophil »

Great results, Stu, even through mediocre conditions. Well done.

Phil


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Re: March 20th in Ha and Ca II K

Post by marktownley »

Really nice set of images Stu, these came out well. Seeing today was bubbling too.


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