MessageToEagle.com - The Milky Way galaxy is part of a larger cosmic neighborhood, consisting of more than
35 galaxies known as the Local Group.
One of the most prominent members of the Local group and at the same time - our neighbor is M31, the Andromeda Galaxy.
It has two small satellite galaxies, M32 and M110.
Also prominent in the local group is the Triangulum Galaxy (M33), Leo I, and NGC 6822.
There are over 30 galaxies that are considered to be in the local group, and they are spread over a diameter of nearly
10 million light years, with the center of them being somewhere between the Milky Way and the Andromeda Galaxy.
Both M31 and the Milky Way have dwarf galaxies associated with them.
Numerous, less glamorous dwarf galaxies, keep the Milky Way company.
Many other galaxies, however, are comparatively isolated, and have no close neighbors. One of them is a lonely galactic
island - a dwarf irregular galaxy called DDO 190.
Recently, the NASA/ESA Hubble Space Telescope with its advanced Camera for Surveys, captured a new image of this
lonely galactic island.
DDO 190 is relatively small and lacks clear structure.
Older, reddish stars mostly populate DDO 190’s outskirts,
while some younger, bluish stars gleam in DDO 190’s more crowded interior.
Some pockets of ionised gas heated up by stars appear here and there, with the most noticeable one shining
towards the bottom of DDO 190 in this picture.
Click on image to enlarge
DDO 190 lies around 9 million light years away from our solar system. Image Credit: ESA/Hubble & NASA
Meanwhile, a great number of distant galaxies with evident spiral, elliptical and less-defined shapes glow in the background.
DDO 190 lies around nine million light-years away from our Solar System. It is considered part of the loosely
associated Messier 94 group of galaxies, not far from the Local Group of galaxies that includes the Milky Way.
Canadian astronomer Sidney van der Bergh was the first to record DDO 190 in 1959 as part of the DDO catalogue
of dwarf galaxies. (“DDO” stands for the David Dunlap Observatory, now managed by the Royal Astronomical Society of
Canada, where the catalogue was created).
Although within the Messier 94 group, DDO 190 is on its own. The galaxy’s nearest dwarf galaxy neighbour, DDO 187,
is thought to be no closer than three million light-years away. In contrast, many of the Milky Way’s companion galaxies,
such as the Large and Small Magellanic Clouds, reside within a fifth or so of that distance, and even the giant spiral of
the Andromeda Galaxy is closer to the Milky Way than DDO 190 is to its nearest neighbour.
Hubble’s Advanced Camera for Surveys captured this image in visible and infrared light.
The field of view is around 3.3 by 3.3 arcminutes
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