Donatiello I Dwarf Galaxy [map], Giuseppe Donatiello
Donatiello I Dwarf Galaxy [map], Giuseppe Donatiello

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Donatiello I Dwarf Galaxy

RA, Dec: 01 11 40.37 +34 36 03.2

Background image: Kees Scherer, Giuseppe Donatiello

Color insert: 10.4m Gran Telescopio Canaria (GTC) g, r, i, filters

Donatiello I is a dwarf spheroidal galaxy in Andromeda, located 9.87 million light-years from Earth. It is a possible satellite galaxy of the dwarf lenticular galaxy NGC 404, "Mirach's Ghost". It is otherwise one of the most isolated dwarf spheroidal galaxies known, being separated from NGC 404 by around 211,000 light-years.

Discovered on September 23, 2016, follow-up observations with the Roque de los Muchachos Observatory led to a scientific paper on its discovery being published in December 2018.

It is currently among the 160 galaxies closest to the Milky Way.

Martínez-Delgado et al. 2018 - A&A 620, A126 (2018)

https://www.aanda.org/articles/aa/full_html/2018/12/aa33302-18/aa33302-18.html

https://doi.org/10.1051/0004-6361/201833302

SIMBAD: http://simbad.u-strasbg.fr/simbad/sim-id?Ident=NAME%20Donatiello%20I%20Dwarf%20Galaxy%20

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Donatiello I Dwarf Galaxy [map], Giuseppe Donatiello

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