"Donatiello I", a cabin galaxy found by an amateur astronomer


An international team of astronomers has confirmed the discovery a spherical dwarf galaxy Andromeda galaxy, according to the Canary Institute of Astrophysics (IAC).

The observation was made in the first stage amateur astrophysics Giuseppe Donatiello, who found it in analyzing the various Andromeda images he had captured in the 2010-2013 Pollino National Park, Southern Italy. A new galaxy it is called the "Donatiello I" to his honor.

The findings of the GTC and the Galileo National Telescope (TNG) revealed that the stars were 9.78 million light years.

Based on the position and distance of Donatiello I, researchers hypothesize that it is an elliptical galaxy's miniature satellite called "Mirach's Ghost" because it is a close star Mirach (the second brightest of Andromeda constellation).

Old stars

According to the data analyzed so far, the recently discovered dwarf galaxy consists mainly of old stars and its contents resemble other latex relationships that are quite close to the Milky Way, such as Draco's Dwarf Stalk or Ursa Minor.

This article explains the findings and attributes of IAC researcher Donatiello I Mike Beasley notes that "the lack of young stars and the lack of gas are typical of the galaxies of dwarf hills that stopped storming billions of years ago".

Secondly, David Martínez Delgado, A researcher at Heidelberg University (Germany) and the main contributor to the above-mentioned article, argues that "the theory of galaxy formation is of great interest to implement a complete list of dwarf galaxies near the local group. "

The so-called local group consists of about 30 small galaxies and three major spiral galaxies: Andromeda, Triangle Galaxy and the Milky Way where our solar system is located.

Martínez Delgado notes the finding of "Donatiello I" and stresses that "amateur-astrophaged small telescopes" to perform the census of bright galaxies on these small surfaces", which specifies that" at present, maps can not be detected based on the number of individual stars or the detection of neutral hydrogen gas emissions ".


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