A flock of stars
The glittering specks in this image, resembling a distant flock of flying birds, are the stars that make up a dwarf galaxy.
Captured in this new image from the NASA/ESA Hubble Space Telescope, dwarf galaxy ESO 540-31 lies just over 11 million light-years from Earth, in the constellation of Cetus (The Whale). The background of this image is full of many other galaxies, all at vast distances from us.
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Dwarf galaxies are among the smaller and dimmer members of the galactic family, typically containing only around a few hundred million stars. Although this sounds like a large number, it is small when compared to spiral galaxies like our Milky Way, which are made up of hundreds of billions of stars.
Source : European Space Agency (ESA) - view original press release