dwarf spheroidal galaxy
名词 n.
英文释义
名词 n.
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A faint galaxy, devoid of gas, having a higher than normal proportion of dark matter; especially those that orbit the Milky Way and Andromeda
— The inventory keeps growing, and the latest recruit is a dwarf spheroidal galaxy, meaning no gas and not many more than 10⁶⁻⁷ stars, that has the bad luck to be almost on the far side of the galactic centre from us.
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数据来源: Wiktionary