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02163_Field_galaxy.txt
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1995-11-04
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galaxy: A large collection of stars and
associated clouds of gas and dust.
Galaxies are categorized by their
shape. Any type of galaxyΓÇöspiral,
elliptical, or irregularΓÇöcan have a bar
or conspicuous elongated band of
stars. These galaxies are called barred.
elliptical galaxies lack structure;
consisting of billions of stars evenly
distributed around their centers, they
appear as fuzzy blobs.
spiral galaxies look like flattened
disks with sweeping arms of stars.
They can come in a multitude of
shapes and sizes and are classified
according to the compactness of their