Jisho

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矮小不規則銀河しし座A
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Wikipedia definition
1. Leo A​Leo A (also known as Leo III) is an irregular galaxy that is part of the Local Group. It lies 2.25 million light-years from Earth. This galaxy was discovered by Fritz Zwicky in 1942. The estimated mass of this galaxy is (8.0 ± 2.7) × 10 solar masses, with at least 80% consisting of an unknown dark matter. It is one of the most isolated galaxies in the local group and shows no indications of an interaction or merger for several billion years.
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Read “矮小不規則銀河しし座A” on Japanese Wikipedia
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