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Hubble takes a closer look at the not so "dead" neighbor



  Hubble Does not Look Like This
Credit: ESA / Hubble & NASA, L. Ferrarese et al

Many of the most popular galaxies in the cosmos are remarkably large, close, massive, bright or beautiful, often with an unusual or fascinating structure or history. However, all types are required to create a universe, as shown in this Hubble image by Messier 1

10.

Messier 110 may not look like much, but it's a fascinating close neighbor to our home galaxy and an unusual example of this guy. It is a member of the local group, a cluster of galaxies that includes the Milky Way and a number of its nearest galaxies. In particular, Messier 110 is one of the many satellite galaxies that orbit the Andromeda galaxy, our closest major galaxy, and is classified as an elliptical dwarf galaxy, meaning that it has a smooth and almost strange structure. Elliptical galaxies lack arms and remarkable pockets of star formation – both characteristic features of spiral galaxies. Dwarf elliptical galaxies are common in galaxy clusters and clusters and are often satellites of larger galaxies.

Elliptical galaxies are often considered "dead" in comparison to their spiral relatives, as they have no star gardens and mainly contain ancient stars. However, astronomers have detected signs of a population of young, blue stars in the center of Messier 110 – suggesting that it is not so "dead" after all.

Messier 110 is featured in Hubble's Messier catalog, some of which contain the most fascinating celestial objects that can be observed from the northern hemisphere.


Image: Hubble sees a galaxy that defies the trend


Provided by
Goddard Space Flight Center of NASA




Quote :
Hubble takes a closer look at the not so "dead" neighbor (2019, September 23)
retrieved on September 23, 2019
from https://phys.org/news/2019-09-hubble-closer-not-so-dead-neighbor.html

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