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A new look at Stephan's Quintet, a compact group of galaxies discovered about 130 years ago and located 280million light years from Earth. One galaxy is passing through a core of four other galaxies.
對130年前發現，距地球2.8億光年的名為Stephan's Quintet的一組星系重新觀察：其中一個星系正通過其他四個星系的核心部分。
