Dwarf Spheroidal

Ursa Minor Dwarf

Old, diffuse companion in Ursa Minor

2,400 ly across~300,000 stars0 charted systems
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Galactic Lore

Discovered in 1955. About 220,000 light-years from the Milky Way. Almost all of its stars formed in the early universe, leaving behind a cool, sparse stellar population with very little gas.