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Dwarf spheroidal galaxy
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Low-luminosity galaxy of old stars and little dust
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A dwarf spheroidal galaxy (dSph) is a term in astronomy applied to small, low-luminosity galaxies with very little dust and an older stellar population. They are found in the Local Group as companions to the Milky Way and as systems that are companions to the Andromeda Galaxy (M31). While similar to dwarf elliptical galaxies in appearance and...

Subclass of
Dwarf galaxy
Lenticular galaxy
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