An all-sky view of the Orphan Stream

We use astrometry, broad-band photometry, and variability information from the Data Release 2 of ESA's Gaia mission (GDR2) to identify members of the Orphan Stream (OS) across...我们利用欧洲空间局（European Space Agency, ESA）盖亚（Gaia）任务第二版数据发布（GDR2）提供的天体测量、宽带测光以及变率信息，对横跨……的孤儿星流（Orphan Stream, OS）成员开展识别工作。