AR12708 in H-a and at 655nm 280mm

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Valery
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AR12708 in H-a and at 655nm 280mm

Post by Valery » Mon May 14, 2018 4:38 pm

Hi all,

Here are the images of the AR12708 taken May 7 2108 at a moderate seeing condition. Telescope is C11
280mm F/10 SCT equipped with the ARIES full size two bands DERF filter.

The first image has been taken with unheated etalon (far blue wing) and the second image at the H-a core.
One can see how much more interesting this group in Ha than in nearby continuum.

Thanks for looking.



Valery
Attachments
AR12708-May-7-2018-UT-07h-11m-C11-Q-0,2A.jpg
unheated etalon
AR12708-May-7-2018-UT-07h-11m-C11-Q-0,2A.jpg (496.12 KiB) Viewed 389 times
AR12708-May-7-2018-UT-07h-34m-C11-Q-0,2A--3clc.jpg
H-a core
AR12708-May-7-2018-UT-07h-34m-C11-Q-0,2A--3clc.jpg (495.08 KiB) Viewed 389 times
Last edited by Valery on Mon May 14, 2018 4:51 pm, edited 1 time in total.
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GreatAttractor
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Re: AR12708 in H-a and at 655nm 280mm

Post by GreatAttractor » Mon May 14, 2018 4:46 pm

Cracking shots, Valery! The seeing was unfortunately unusable for me.
My software:
Stackistry — an open-source cross-platform image stacker
ImPPG — stack post-processing and animation alignment
My images

SW Mak-Cass 127, ATM Hα scope (D=90 mm, LS50 etalon), Lunt LS50THa, ATM SSM, ATM Newt 300/1500 mm, PGR Chameleon 3 mono (ICX445)

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Re: AR12708 in H-a and at 655nm 280mm

Post by Valtori » Mon May 14, 2018 5:42 pm

Hi Valery,

Wonderful images of Ha blue wing & core!! Much details.

Val

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Re: AR12708 in H-a and at 655nm 280mm

Post by ffellah » Mon May 14, 2018 5:47 pm

Both fantastic, Valery !

Franco

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Re: AR12708 in H-a and at 655nm 280mm

Post by robert » Mon May 14, 2018 7:14 pm

First has wonderful resolution. Great shots
Robert
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Re: AR12708 in H-a and at 655nm 280mm

Post by marktownley » Tue May 15, 2018 5:05 am

Excellent closeups Valery! They came out well.
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Re: AR12708 in H-a and at 655nm 280mm

Post by Montana » Tue May 15, 2018 11:26 am

Very crisp details, excellent work :bow :hamster:

Alexandra

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