Wednesday Before Work - 15th May

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marktownley
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Wednesday Before Work - 15th May

Post by marktownley » Wed May 15, 2019 8:09 pm

Another day with clear skies dawned this Wednesday morning for me, and despite some haze in the eastern sky this seemed to have no ill effects and the seeing was actually quite good and could have probably taken more aperture. However time is never on ones side and I needed to leave for work at a certain time, so limited myself to some full disks with the travelling kit.

First off the full disk with the 40mm f10 OTA with a Coronado cemax barlow, camera was the FLIR GH3 ICX814. The spicule ring is easy on the full size image but the proms were being elusive at 393nm for me today.

Imagecak-fd.-bw by Mark Townley, on Flickr

Imagecak-fd.-colour by Mark Townley, on Flickr

Next up the Lunt50 etalon on my ED60 scope, again with the same barlow and camera. The proms were being much more obliging in longer wavelengths and there is a lot of detail on the limb for those who fancy an explore of the image at full size.

ImageHa-fd-ss-bw by Mark Townley, on Flickr

ImageHa-fd-ss-colour by Mark Townley, on Flickr

I did try double stacking this setup with my other Lunt50 etalon, and while visually the image is excellent, when imaging it's just not as 'flat' as with the etalon used in the above shots on my SM90. Maybe i'm just getting fussy as my solar journey progresses!

Hoping for another go at imaging in the morning assuming the weather obliges!

Mark
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Re: Wednesday Before Work - 15th May

Post by MalVeauX » Wed May 15, 2019 8:26 pm

Lovely discs Mark!

Very best,

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Re: Wednesday Before Work - 15th May

Post by ffellah » Thu May 16, 2019 12:08 am

Another really good set, Mark. That lightbridge is so clearly visible in the CaK images...

Franco

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Re: Wednesday Before Work - 15th May

Post by Astrophil » Thu May 16, 2019 1:11 am

Mark, I think those images are very good. Plenty flat in my opinion. You're just fussy.

Phil

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Re: Wednesday Before Work - 15th May

Post by marktownley » Thu May 16, 2019 5:21 am

Thanks guys! I am fussy you're right Phil ;) Here's my fussy double stack full disk, I wish it was as flat as the SS above.

Imageha-fd-ds-bw by Mark Townley, on Flickr

Imageha-fd-ds-colour by Mark Townley, on Flickr

Bit hazy this morning but I think will give it a go...
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Re: Wednesday Before Work - 15th May

Post by Montana » Thu May 16, 2019 9:29 am

I enjoyed a good close up view of these, I think the big prom is just about visible in CaK, maybe a separate one with shadows and highlights cranked up would show it? I guess it was not a CaK emitter.
It was gorgeous blue sky this morning, I hope you got another session in :bow

Alexandra

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Re: Wednesday Before Work - 15th May

Post by MAURITS » Thu May 16, 2019 12:46 pm

Excellent images Mark.
Regards,
Maurits

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Re: Wednesday Before Work - 15th May

Post by marktownley » Thu May 16, 2019 7:08 pm

Thanks everyone!
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Re: Wednesday Before Work - 15th May

Post by eroel » Fri May 17, 2019 2:17 pm

Mark:
Beautiful session.
Best wishes,
Eric.

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Re: Wednesday Before Work - 15th May

Post by xn44 » Fri May 17, 2019 3:46 pm

good images!

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