Solar FDs in 540 nm Continuum and CaK

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Carbon60
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Solar FDs in 540 nm Continuum and CaK

Post by Carbon60 »

The sky only cleared after lunch. With the late start and a brisk wind I thought it only worth setting up for FD views. No close-ups :(

First off 'WL' with a Baader solar continuum filter (540 nm) on the nose of a Lacerta wedge on my 72mm f6 Altair Astro 'Lightwave' ED refractor.

Image20190817_WL_Mono by Stuart Green, on Flickr

and in colour.

Image20190817_WL_Colour by Stuart Green, on Flickr

And then over to CaK with the same scope and a Lunt B600 CaK module with an omega filter and Baader K-line.

Image20190817_CaK_FD_Mono by Stuart Green, on Flickr

Image_20190817_CaK_FD_Colour by Stuart Green, on Flickr

It's just a pity things are so quiet currently.

Thanks for looking.

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: Solar FDs in 540 nm Continuum and CaK

Post by marktownley »

Nice views Stu. It was blustery this afternoon, scope was bouncing all over the place. The sun is quiet though unfortunately. Look hard in the WL though, the polar faculae are visible, they were prominent today.


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Re: Solar FDs in 540 nm Continuum and CaK

Post by ffellah »

A nice set, Stu. I like the CaK, it came out really well.

Franco


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Re: Solar FDs in 540 nm Continuum and CaK

Post by MAURITS »

Super Cak images Stu.


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Re: Solar FDs in 540 nm Continuum and CaK

Post by xn44 »

Good work, maurits!


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Re: Solar FDs in 540 nm Continuum and CaK

Post by Montana »

Beautiful full discs Stuart :bow

The Sun came out for me too in the afternoon but the wind made everything a challenge, you have much crispier shots than me.

Alexandra


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Re: Solar FDs in 540 nm Continuum and CaK

Post by eroel »

Stu:
Beautiful FD´s, even the featureless WL ones.
Best regards,
Eric.


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Re: Solar FDs in 540 nm Continuum and CaK

Post by Carbon60 »

Many thanks, everyone. Much appreciated. It’s a pity there isn’t more to see.

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: Solar FDs in 540 nm Continuum and CaK

Post by Carbon60 »

marktownley wrote: Sat Aug 17, 2019 7:42 pm ........Look hard in the WL though, the polar faculae are visible, they were prominent today.
I see what you mean, Mark, now you’ve pointed them out. :)

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: Solar FDs in 540 nm Continuum and CaK

Post by allhoest »

The Lacerta Wedge is a very fine instrument.
Your CaK pic is beautifull.
What is you setup? You removed the 2 front filters of the Lunt and replaced them with an omega filter and a K-line?
In which order? K-Line first then Omega?

CS
Alex


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Re: Solar FDs in 540 nm Continuum and CaK

Post by MapleRidge »

These are fine FD image Stu, and the CaK version is very sharp. Well done :bow


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Re: Solar FDs in 540 nm Continuum and CaK

Post by Carbon60 »

Many thanks, Alex/Brian.

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: Solar FDs in 540 nm Continuum and CaK

Post by Carbon60 »

allhoest wrote: Tue Aug 20, 2019 5:52 am The Lacerta Wedge is a very fine instrument.
Your CaK pic is beautifull.
What is you setup? You removed the 2 front filters of the Lunt and replaced them with an omega filter and a K-line?
In which order? K-Line first then Omega?

CS
Alex
Hi Alex,

No modification to the Lunt necessary. The filters are simply screwed on the front of the Barlow. The sequence is as follows:

Objective, Lunt, Baader K-line, Omega, 1.5x Barlow, camera.

Hope this helps.

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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