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File:M57 Large scale structure (Image Of Team) (18679901468).jpg

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Image credits: Domenico Argentiero, Giuseppe Donatiello, Terenzio Fusco, Federico Lavarino, Colin McGill, Alessandro Elio Milani.

This is a wide-field version which also anticipates a Hi-res version that will be processed separately. The purpose of this is only to highlight the large-scale structure of the object, much more extensive than the central part. Note the four lobes only visible in OIII, part of a ring very weak. Clearly visible a halo mostly in OIII in bipolar structure. All images have been aligned with a composition of related RB POSS-II plates.

Telescopes: Ian King Ikharos 8 "RC - SW BKP 250 DS f/4.8 - Celestron C9.25 XLT - (DIY) ED doublet 127 f/9 v.13 - Celestron C8 CPC 800 XLT - A-P EDT 130 f/9 Total exposure: 62 hours.

www.astrobin.com/136287/E/
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Source M57 Large scale structure [Image Of Team]
Author Giuseppe Donatiello

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Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

This image was originally posted to Flickr by gjdonatiello at https://flickr.com/photos/133259498@N05/18679901468. It was reviewed on 30 August 2017 by FlickreviewR and was confirmed to be licensed under the terms of the cc-zero.

30 August 2017

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