What type of galaxies primarily comprise the lesser, fainter members scattered throughout the Local Group?
Answer
Dwarf galaxies
The membership roster of the Local Group exceeds 50 galaxies, with the majority of these lesser components being significantly smaller and less luminous than the primary spirals like the Milky Way and Andromeda. These fainter satellites are predominantly classified as dwarf galaxies. Many of these dwarf galaxies act as true satellites, orbiting one of the major systems; for instance, the Large and Small Magellanic Clouds are examples of such dwarf companions orbiting the Milky Way.
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