Andromeda XVIII: Difference between revisions

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Andromeda XVIII is a dwarf spheroidal (has no rings, low luminosity, lots of dark matter, not a lot of gas or dust) satellite galaxy of the Amdromeda Galaxy (M13), discovered in 2008. It is one of the 14 known dwarf galaxies orbiting M13. It was announced in 2010 that the orbiting galaxies lie close to a plane running through M13's center.