Ca K and H-a through 11" aperture Nov 2 2017

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Valery
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Ca K and H-a through 11" aperture Nov 2 2017

Post by Valery »

Hi all,

Nov 2, was a clear warm day. Seeing was variable from barely
acceptable to good.

I decided to image the sun in Ca II K and H-a.

Telescope is my trusty Celestron 11 280mm F/10 SC equipped with the ARIES
295mm DERF two bands filter and PRG Flea 3 b/w camera.

The Ca K filter is a Double Stacked resulting about 1,5A bandwidth with a very steep transmission curve.

H-a filter is a single stacked.


Thanks for looking.


Valery.
Attachments
Nov-2-2017--UT-07h-55m-C11-ARIES-295mm-DERF--CaK-PST-DS-Flea3.jpg
Nov-2-2017--UT-07h-55m-C11-ARIES-295mm-DERF--CaK-PST-DS-Flea3.jpg (478.93 KiB) Viewed 1096 times
Nov-2-2017--UT-07h-47m-C11-ARIES-295mm-DERF--PST-Flea3.jpg
Nov-2-2017--UT-07h-47m-C11-ARIES-295mm-DERF--PST-Flea3.jpg (470.93 KiB) Viewed 1096 times
Nov-2-2017--UT-07h-57m-C11-ARIES-295mm-DERF--CaK-PST-DS-Flea3.jpg
Nov-2-2017--UT-07h-57m-C11-ARIES-295mm-DERF--CaK-PST-DS-Flea3.jpg (494.55 KiB) Viewed 1096 times
Nov-2-2017--UT-07h-45m-C11-ARIES-295mm-DERF--PST-Flea3.jpg
Nov-2-2017--UT-07h-45m-C11-ARIES-295mm-DERF--PST-Flea3.jpg (467.64 KiB) Viewed 1096 times
Nov-2-2017--UT-08h-54m-C11-ARIES-295mm-DERF--CaK-PST-Flea3.jpg
Nov-2-2017--UT-08h-54m-C11-ARIES-295mm-DERF--CaK-PST-Flea3.jpg (492.88 KiB) Viewed 1096 times
Nov-2-2017--UT-07h-32m-C11-ARIES-295mm-DERF--PST-Flea3.jpg
Nov-2-2017--UT-07h-32m-C11-ARIES-295mm-DERF--PST-Flea3.jpg (285.9 KiB) Viewed 1096 times
Nov-2-2017--UT-09h-46m-C11-ARIES-295mm-DERF--PST.jpg
Nov-2-2017--UT-09h-46m-C11-ARIES-295mm-DERF--PST.jpg (132.54 KiB) Viewed 1096 times
Last edited by Valery on Sun Nov 19, 2017 4:02 am, edited 1 time in total.


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Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.
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Re: Ca K and H-a through 11" aperture Nov 2 2017

Post by yltansg »

Hi Valery,

As usual great captures, despite the seeing.

Alfred


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Re: Ca K and H-a through 11" aperture Nov 2 2017

Post by marktownley »

Good results given the conditions Valery, you can tell the seeing is not as good as you normally get.


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Re: Ca K and H-a through 11" aperture Nov 2 2017

Post by Montana »

Wow!! the CaK is just fabulous!!! :bow :bow :hamster:
Alexandra


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Re: Ca K and H-a through 11" aperture Nov 2 2017

Post by MapleRidge »

Hi Valery...

These are very good images...even with the variable conditions your capture and processing turned out very well.

Brian


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Maple Ridge Observatory
Cambray, ON Canada

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10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
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Deep Sky Work - ASI294MM Pro+EFW 7x36/Canon 60D (Ha mod), ONAG
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2.2m Diameter Dome
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Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
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Re: Ca K and H-a through 11" aperture Nov 2 2017

Post by Derek Klepp »

Great collection Valery.


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Re: Ca K and H-a through 11" aperture Nov 2 2017

Post by ffellah »

Very nice work, Valery

Franco


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