Flying over the sun eastern limb in a 280mm scope.

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Valery
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Flying over the sun eastern limb in a 280mm scope.

Post by Valery » Sun Sep 23, 2018 6:31 pm

Hi to all,

Once flew over the spotless sun eastern limb with a 280mm SCT (very poor at 393nm?) .

Bands were H-a DS, Ca-II-K 2.2A, 393nm 10nm

Seeing was average with some improvements to a good one.

Hope you like these photos taken during that flight.

PS. Flight #2 was near the center of the spotless sun and was successfull too. But this is another story. Will tell you later.

Right click on the images, open them in a separate window to see them at a full resolution.


Valery
Attachments
2017-Aug-05-UT05h20m-C11-ARIES-DERF-PST-CaK-Basler-1920-155.jpg
Blue wing of Ca-K 2,2A
2017-Aug-05-UT05h20m-C11-ARIES-DERF-PST-CaK-Basler-1920-155.jpg (480.11 KiB) Viewed 483 times
2017-Aug-05-UT05h32m-C11-ARIES-DERF-393nm-Basler-1920-155.jpg
393nm continuum
2017-Aug-05-UT05h32m-C11-ARIES-DERF-393nm-Basler-1920-155.jpg (493.34 KiB) Viewed 483 times
2017-Aug-05-UT06h25m-C11-ARIES-DERF-Ha-DS-Basler-1920-155.jpg
H-a DS
2017-Aug-05-UT06h25m-C11-ARIES-DERF-Ha-DS-Basler-1920-155.jpg (477.95 KiB) Viewed 483 times
"Solar H alpha activity is the most dynamic and compelling thing you can see in a telescope, so spend accordingly." (c) Bob Yoesle.

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Re: Flying over the sun eastern limb in a 280mm scope.

Post by marktownley » Sun Sep 23, 2018 7:40 pm

Very impressive as always Valery! No safix with the c11 then?
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Re: Flying over the sun eastern limb in a 280mm scope.

Post by eroel » Mon Sep 24, 2018 12:12 am

Valery:
Super shots.
Regards,
Eric.

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Valery
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Re: Flying over the sun eastern limb in a 280mm scope.

Post by Valery » Mon Sep 24, 2018 6:59 am

TheSkyBurner wrote:
Sun Sep 23, 2018 11:18 pm
The halpha is clearly much better defined than the 393.4. If you look at the top portion of your calcium image it is fairly blurred(this could simply ge from the low intensity transmission of the pst filter) Not complaing, its far greater than what ill be imaging and pretty much anyone else on the forum in the next 10 years.

But you can certainly do better!

Apples and oranges....
1. I certanly will do better, at least due to a greater aperture - the C14.

2. My goal is: all ARIES 2/3 bands filters owners should do at least comparable images, better if they will surpass my results.

3. This CaK image suffer from insufficient S/N due a rust on the blocking filter. Need to change the blocking filter.
Second reason is that at the edge the CaK "relief" is MUCH worser defined vs H-a DS. Regardless of filtration. This is nature of these supergranulation cells.

And, this is not my best CaK image. Far not the best.

Thanks for your critical note. Will work more about aestetical level of published CaK images.


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: Flying over the sun eastern limb in a 280mm scope.

Post by Montana » Mon Sep 24, 2018 9:13 am

These are thoroughly beautiful Valery, I prefer you to put all images up, not just the very best, it gives us something to aim for :)

Congratulations on a very well deserved SPOD :hamster:
:bow
Alexandra

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Re: Flying over the sun eastern limb in a 280mm scope.

Post by marktownley » Mon Sep 24, 2018 6:52 pm

Valery wrote:
Mon Sep 24, 2018 6:59 am

This CaK image suffer from insufficient S/N due a rust on the blocking filter. Need to change the blocking filter.
What filters are you using in the CaK module Valery?
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Re: Flying over the sun eastern limb in a 280mm scope.

Post by Derek Klepp » Tue Sep 25, 2018 7:44 am

Valery great SPOD

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Re: Flying over the sun eastern limb in a 280mm scope.

Post by Valery » Wed Sep 26, 2018 12:41 pm

marktownley wrote:
Mon Sep 24, 2018 6:52 pm
Valery wrote:
Mon Sep 24, 2018 6:59 am

This CaK image suffer from insufficient S/N due a rust on the blocking filter. Need to change the blocking filter.
What filters are you using in the CaK module Valery?
I do use Edmund 10nm 393nm, PST CaK #2 + PST CaK #1. I need to replace the PST CaK #2 with a second Edmund 10nm 393nm. Or just buy a Baader K-line filter and use it with #1 PST CaK.


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: Flying over the sun eastern limb in a 280mm scope.

Post by robert » Wed Sep 26, 2018 5:06 pm

Great shots anyway!
images and animations http://tinyurl.com/h5bgoso
2018 images https://www.flickr.com/photos/69734017@ ... 1234171714
2017 images http://tinyurl.com/gvk9k3k
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Re: Flying over the sun eastern limb in a 280mm scope.

Post by Carbon60 » Thu Sep 27, 2018 5:41 am

Excellent images, Valery. You continue to set the bar very high. Thanks for showing us what CAN be done.

Stu.
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