邻近宇宙的恒星流
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2019 November 16 The Star Streams of NGC 5907 Image Credit & Copyright: R Jay Gabany (Blackbird Observatory) – collaboration; D.Martinez-Delgado(IAC, MPIA), J.Penarrubia (U.Victoria) I. Trujillo (IAC) S.Majewski (U.Virginia), M.Pohlen (Cardiff) Explanation: Grand tidal streams of stars see