短语词组短语Orion Nebula purple 紫色光年orion nebula detail 猎户座星云Great Orion Nebula 猎户座大星云;伟大的猎户座星云Orion 's Horsehead Nebula 猎户座马头星云great nebula of orion 猎户星云;猎户座大星云Great Nebula in Orion 猎户星云The Great Nebula in Orion 猎户座大星云 返回 Orion Nebula