Sunday Sunshine in Reasonable Seeing - 24th February

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Sunday Sunshine in Reasonable Seeing - 24th February

Post by marktownley »

Sunday dawned clear for me, much of the country seemed to be shrouded in fog, but for some bizarre reason I seemed to be missing it and was treated to blue skies. It became apparent very quickly that the seeing was oscillating from something semi decent to appalling, so I quickly got the SSM up and running to catch only the best offerings.

Starting off with the full disk in Ha with the SM90 I was pleased that the spicule ring had 'texture' rather than the flat featureless one that I had yesterday. It wasn't quite 'hairy' so I would say my seeing was 'middling' - maybe a 6 or 7 out of 10.

Imageha-full-disk-bw by Mark Townley, on Flickr

Imageha-full-disk-colour by Mark Townley, on Flickr

Things were quiet in Ha with few proms and little on the disk. I was playing double stacking with the Quark when an Icelandair flight presented a nice transit for me...

Imageplane-sc by Mark Townley, on Flickr

I was running a sequence of frames for a time lapse, but nit much was happening very quick, here is an 8 minute view. I still have stills to process of this area.

Image800-ani by Mark Townley, on Flickr

Frustrated with yesterdays attempts at CaK I was keen to try a different approach, first off the full disk at 60mm f15; the seeing was behaving and this has lots of potential when there is more to see. Be sure to click on the images in flickr, they're large.

ImageCaK-Full-Disk-bw by Mark Townley, on Flickr

ImageCaK-Full-Disk-colour by Mark Townley, on Flickr

The a change to the 100mm, somewhere f20+

Imagecak-close-bw by Mark Townley, on Flickr

Imagecak-close-colour by Mark Townley, on Flickr

Pleased with todays session!

Mark


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Re: Sunday Sunshine in Reasonable Seeing - 24th February

Post by Astrophil »

Great images, Mark and a bit of entertainment! Thanks

Phil


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Re: Sunday Sunshine in Reasonable Seeing - 24th February

Post by ffellah »

I loved that time lapse, Mark !

Franco


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Re: Sunday Sunshine in Reasonable Seeing - 24th February

Post by MalVeauX »

Nice captures, amazing how fast that filament dissipated.

Very best,


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Re: Sunday Sunshine in Reasonable Seeing - 24th February

Post by xn44 »

Great work!!!!


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Re: Sunday Sunshine in Reasonable Seeing - 24th February

Post by MapleRidge »

An excellent collection of images and videos today Mark. Superb work and results :bow

Brian


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Re: Sunday Sunshine in Reasonable Seeing - 24th February

Post by marktownley »

Thanks everyone for the kind words. Here's a shot of the departing plage / filament taken with the SM90/Quark combo:

Imagear-ha-bw by Mark Townley, on Flickr

Imagear-ha-colour by Mark Townley, on Flickr


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Re: Sunday Sunshine in Reasonable Seeing - 24th February

Post by pedro »

Nice collection of images Mark. The SM90 is a great performer (very uniform disk)


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Re: Sunday Sunshine in Reasonable Seeing - 24th February

Post by MAURITS »

Very nice collection Mark, very sharp too ...


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Re: Sunday Sunshine in Reasonable Seeing - 24th February

Post by pedro »

How do you colorize your videos Mark?


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Re: Sunday Sunshine in Reasonable Seeing - 24th February

Post by Carbon60 »

A fine set of images, Mark. You had a bountiful weekend, including a fine jet transit ;)

Stu


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Re: Sunday Sunshine in Reasonable Seeing - 24th February

Post by bart1805 »

Beautiful Mark! And one of the best transits I have ever seen.
What kind of CaK filter train are you using at the moment?


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Re: Sunday Sunshine in Reasonable Seeing - 24th February

Post by marktownley »

Thanks everyone for the comments!

Colouring the animations is easy Pedro. I select the frames I want from the avi file use the 'limit frames' and then 'export' in AS3. I then open the first frame in photoshop and process but record this as a macro. I then run the macro on the other frames. The processed frames are then made into a GIF file after aligning etc.


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Re: Sunday Sunshine in Reasonable Seeing - 24th February

Post by Montana »

These are fantastic, especially the CaK full disc (I have a long way to go in CaK :( )
I love the transit and the animation, loads of action going on even in 8 mins of a quiet Sun :bow :hamster:

Alexandra


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Re: Sunday Sunshine in Reasonable Seeing - 24th February

Post by marktownley »

Thanks everyone! Appreciate your comments.


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Re: Sunday Sunshine in Reasonable Seeing - 24th February

Post by rsfoto »

Hi Mark,

Excellent images. No breakfast plate :-)

Rainer


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Re: Sunday Sunshine in Reasonable Seeing - 24th February

Post by marktownley »

Went through the calcium closeup avis and found the sharpest overall from the 15 or so I took, then found I got the sharpest final image from a stack of 12 sub frames. Here it is presented. Makes the previous version seem quite soft and mushy in comparison.

Imagecak-close-good-bw by Mark Townley, on Flickr

Imagecak-close-good-colour by Mark Townley, on Flickr


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Re: Sunday Sunshine in Reasonable Seeing - 24th February

Post by eroel »

Mark:
Thanks for sharing your work and workflows.
Best regards,
Eric.


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Re: Sunday Sunshine in Reasonable Seeing - 24th February

Post by bart1805 »

Wow Mark, beautiful additions! And they inspire to go through my own CaK Avi's again and use even les images to stack.
What is the CaK filter combination you are using? CS! Bart.


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Re: Sunday Sunshine in Reasonable Seeing - 24th February

Post by marktownley »

Thanks Eric. Hi Bart, the CaK PST filter module goes as follows: Objective - Baader K Line, KG3, PST#1, Skybender, PST#1 - CCD. In this case I also had a Baader Blue filter ahead of the CaK module to keep the loading down on it.


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Re: Sunday Sunshine in Reasonable Seeing - 24th February

Post by bart1805 »

marktownley wrote: Thu Feb 28, 2019 6:09 am Thanks Eric. Hi Bart, the CaK PST filter module goes as follows: Objective - Baader K Line, KG3, PST#1, Skybender, PST#1 - CCD. In this case I also had a Baader Blue filter ahead of the CaK module to keep the loading down on it.
Thanks Mark.
In earlier images you posted you could see the CaK double limb. Did you choose to process this image differently? So more detail near the edge, but no double limb?


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Re: Sunday Sunshine in Reasonable Seeing - 24th February

Post by marktownley »

Yeah, I dropped the gamma a bit on this (0.8) in post processing, that always kills the double limb. I'll post up a gamma neutral later. TBH there was nothing happening in the spicule layer which is one of the reasons I dropped the gamma...


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Re: Sunday Sunshine in Reasonable Seeing - 24th February

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Re: Sunday Sunshine in Reasonable Seeing - 24th February

Post by bart1805 »

Thanks again Mark. The difference is obvious, so more inspiration to try different ways of processing.


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