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anemic galaxy : ウィキペディア英語版 | anemic galaxy
An anemic galaxy is a type of spiral galaxy characterized by a low contrast between its spiral arms and its disk. == Origin of the term ==
The term was coined in 1976 by the Canadian astronomer Sidney van den Bergh to classify galaxies that are an intermediate form between the gas-rich, star-forming spiral galaxies and the gas-poor, inactive lenticular galaxies〔 〕
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