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青色矮小銀河
Wikipedia definition
1. Blue compact dwarf galaxyIn astronomy, a blue compact dwarf galaxy (BCD galaxy) is a small galaxy which contains large clusters of young, hot, massive stars. These stars cause the galaxy to appear blue in color. Since they exist mostly in clusters, blue compact dwarf galaxies don't have an exact uniform shape. They consume gas intensely, which causes their stars to become very violent when they are forming. Blue compact dwarf galaxies cool in the process of forming new stars.
Read “Blue compact dwarf galaxy” on English Wikipedia
Read “青色コンパクト矮小銀河” on Japanese Wikipedia
Read “Blue compact dwarf galaxy” on DBpedia

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