The Sun on May 5 2018 as seen with 280mm aperture.

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Valery
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The Sun on May 5 2018 as seen with 280mm aperture.

Post by Valery » Mon May 07, 2018 4:14 am

This morning was a calm with good seeing. I caprtured the sun in CaK and H-a.

The image in CaK was taken first when the seeing didn't start to degrade with the sun going higher in the sky.
Attachments
AR12708-April-05-2018-C11-06h-46m-UT-CaK.jpg
AR12708 in CaK at 0,087"/pixel
AR12708-April-05-2018-C11-06h-46m-UT-CaK.jpg (1.07 MiB) Viewed 738 times
AR12708-April-05-2018-C11-06h-52m-UT-H-a.jpg
AR12708 in H-a with a mini-flare
AR12708-April-05-2018-C11-06h-52m-UT-H-a.jpg (493.74 KiB) Viewed 738 times
April-05-2018-C11-06h-55m-UT-H-a.jpg
some activity at the eastern limb
April-05-2018-C11-06h-55m-UT-H-a.jpg (494.61 KiB) Viewed 738 times
April-05-2018-C11-07h-01m-UT-H-a.jpg
April-05-2018-C11-07h-01m-UT-H-a.jpg (378.86 KiB) Viewed 738 times
"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.

Derek Klepp
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Re: The Sun on May 5 2018 as seen with 280mm aperture.

Post by Derek Klepp » Mon May 07, 2018 6:12 am

Excellent set Valery.

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Re: The Sun on May 5 2018 as seen with 280mm aperture.

Post by ffellah » Mon May 07, 2018 10:46 am

Excellent resolution, Valery. AR2708 is so tiny....

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Re: The Sun on May 5 2018 as seen with 280mm aperture.

Post by Montana » Mon May 07, 2018 12:55 pm

Wow!! what a set!! :bow :bow :bow

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Valery
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Re: The Sun on May 5 2018 as seen with 280mm aperture.

Post by Valery » Tue May 08, 2018 3:21 pm

ffellah wrote:
Mon May 07, 2018 10:46 am
Excellent resolution, Valery. AR2708 is so tiny....

Franco

Yes, Franco, the resolution here at 393nm is about as a 465mm telescope has at H-a 656nm.
A par with 300mm telescope at 430nm G-band.

As soon as my SCT has obtained a corrective optics for 393nm, the images at this wave length became much better and often have a diffraction limited resolution.


Valery
Last edited by Valery on Tue May 08, 2018 4:32 pm, edited 1 time in total.
"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: The Sun on May 5 2018 as seen with 280mm aperture.

Post by eroel » Tue May 08, 2018 4:10 pm

Valery:
Super shots.
Best regards,
Eric.

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Re: The Sun on May 5 2018 as seen with 280mm aperture.

Post by Valery » Thu May 10, 2018 2:11 pm

Thanks to all you.

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"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: The Sun on May 5 2018 as seen with 280mm aperture.

Post by marktownley » Sun May 13, 2018 8:10 am

These are brilliant Valery!
Image
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!

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Re: The Sun on May 5 2018 as seen with 280mm aperture.

Post by Valery » Mon May 14, 2018 11:04 am

Thank you, Pedro and Mark.

I hope to make more hig res solar photos in the CaK line.


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"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: The Sun on May 5 2018 as seen with 280mm aperture.

Post by marktownley » Mon May 14, 2018 1:38 pm

Are you using the SAFIX with the CaK shots Valery?
Image
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!

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Re: The Sun on May 5 2018 as seen with 280mm aperture.

Post by Valery » Mon May 14, 2018 2:12 pm

marktownley wrote:
Mon May 14, 2018 1:38 pm
Are you using the SAFIX with the CaK shots Valery?
This time I didn't use the SAFIX. Another corrective lens has been used.


Valery.
"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: The Sun on May 5 2018 as seen with 280mm aperture.

Post by allhoest » Fri May 18, 2018 6:34 pm

Once again, great shots!
CS
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Re: The Sun on May 5 2018 as seen with 280mm aperture.

Post by Carbon60 » Sat May 19, 2018 5:36 am

Fabulous, Valery. Wonderful images.

Stu.
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Re: The Sun on May 5 2018 as seen with 280mm aperture.

Post by Valery » Sat May 26, 2018 3:27 pm

Thank you, Alex and Stu.


Valery
"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: The Sun on May 5 2018 as seen with 280mm aperture.

Post by allhoest » Sun May 27, 2018 9:14 am

Great shot in CaK.
I look forward for your next posts with the new corrective lens.
CS
Alex.

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Re: The Sun on May 5 2018 as seen with 280mm aperture.

Post by Valery » Sun May 27, 2018 12:18 pm

allhoest wrote:
Sun May 27, 2018 9:14 am
Great shot in CaK.
I look forward for your next posts with the new corrective lens.
CS
Alex.
You can see it here: https://www.cloudynights.com/topic/6181 ... try8578847

Unfortunately the seeing was not good at all.
"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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