File:Donatiello I TNG official.jpg

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Captions

Photograph of the dwarf spheroidal galaxy Donatiello I

Summary[edit]

Description
English: Credit: Telescopio Nazionale Galileo - TNG/DOLORES/ Walter Boschin, Giuseppe Donatiello, David Martínez-Delgado

Donatiello I (Do I) was found on 23 September 2016 in a deep wide field amateur image of the Andromeda galaxy region obtained from the composition of a set of images taken during several years with a refractor ED127mm by the italian amateur astronomer Giuseppe Donatiello. The main purpose of this wide-field mosaic of the area between M31 and M33 was to detect the stellar streams and M31 satellites previously reported in the PAndAs. The detection was confirmed by a visual inspection of the SDSS DR9 images and follow-up observations using the professional facilities TNG and GTC (La Palma, Spain).

Martínez-Delgado et al.: Mirach’s Goblin: Discovery of a dwarf spheroidal galaxy behind the Andromeda galaxy arxiv.org/abs/1810.04741
Date
Source https://www.flickr.com/photos/133259498@N05/43475732760/
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@N05/43475732760 (archive). It was reviewed on 21 February 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-zero.

21 February 2019

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