AR12738 at High Res through 150mm refractor and QUARK Chromosphere.

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Valery
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AR12738 at High Res through 150mm refractor and QUARK Chromosphere.

Post by Valery »

Hi all,



April 11 morning was reither cloudy and foggy. However in two hours the sky cleared.
The seeing was average but with some improvements.So, I took my computer and Quark and
quickly set up the telescope.

Here is the best shot of the AR12738 I was able to take.

The telescope is SkyWatcher 150/750 equipped with the ARIES full aperture DERF, Quark Chromosphere and Basler ASA 1920-155 camera. A 2x TV PM barlow has been used to get F/43 at the etalon (remember that Quark has it's own build-in 4,3x telecentric barlow). F/43 at the etalon helps to keep etalon's bandwidth maximally narrow and so, best possible image contrast.


Thanks for looking.


Valery
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AR12738-2019-04-11-SW150mm-ARIES-155mmDERF-UT09h-39m--QUARK-3cl-Basler1920-155.jpg
AR12738-2019-04-11-SW150mm-ARIES-155mmDERF-UT09h-39m--QUARK-3cl-Basler1920-155.jpg (273.75 KiB) Viewed 1728 times


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Re: AR12738 at High Res through 150mm refractor and QUARK Chromosphere.

Post by JohnW »

Good detail Valery. I saw this spot yesterday but its good to see it up close. Thanks, John W.


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Re: AR12738 at High Res through 150mm refractor and QUARK Chromosphere.

Post by Carbon60 »

Nice one, Valery. Lots of fine detail.

How many Quarks did you get through before you got a good one?

Stu.


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Re: AR12738 at High Res through 150mm refractor and QUARK Chromosphere.

Post by marktownley »

This is an excellent capture Valery


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Re: AR12738 at High Res through 150mm refractor and QUARK Chromosphere.

Post by yltansg »

Hi Valery,

That is a very nice image, despite the weather. I am also keen to try using a Quark Chromosphere on my Celestron 150mm Omni XLT fitted with an ARIES D-ERF. Do you use a 2" 2X TV barlow immediately at the output of the telescope followed by the Quark Chromosphere? Any other adapter/spacers required in between? Can you show a side-view picture of the telescope with the Quark and Basler camera?

Thanks.

Alfred


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Re: AR12738 at High Res through 150mm refractor and QUARK Chromosphere.

Post by MalVeauX »

Lovely capture Valery!

Very best,


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Re: AR12738 at High Res through 150mm refractor and QUARK Chromosphere.

Post by Valery »

yltansg wrote: Fri Apr 12, 2019 5:47 am Do you use a 2" 2X TV barlow immediately at the output of the telescope followed by the Quark Chromosphere? Any other adapter/spacers required in between?
Yes, correct. And no optics in between.


Valery


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Re: AR12738 at High Res through 150mm refractor and QUARK Chromosphere.

Post by MapleRidge »

That is an excellent image Valery...well done :bow

Brian


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Re: AR12738 at High Res through 150mm refractor and QUARK Chromosphere.

Post by Valery »

Carbon60 wrote: Fri Apr 12, 2019 5:28 am Nice one, Valery. Lots of fine detail.

How many Quarks did you get through before you got a good one?

Stu.
It's uniformity is far from perfect. Visually the non-uniformity is relatively easily seen, especially when moving accross the sun disk.
It is very narrow, but not really uniform,


Valery
Last edited by Valery on Fri Apr 19, 2019 3:18 am, edited 3 times in total.


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Re: AR12738 at High Res through 150mm refractor and QUARK Chromosphere.

Post by MAURITS »

Excellent Valery.


Regards,
Maurits

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Re: AR12738 at High Res through 150mm refractor and QUARK Chromosphere.

Post by Valery »

Thanks, Maurits.


"Solar H alpha activity is the most dynamic and compelling thing you can see in a telescope, so spend accordingly." (c) Bob Yoesle.

Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.
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Re: AR12738 at High Res through 150mm refractor and QUARK Chromosphere.

Post by Montana »

That's a cracker Valery :bow :hamster:

Alexandra


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