At the upper left, the end of the drifting plume is punctuated by Alnitak, Alnilam, and Mintaka in a vertical line, the belt stars of Orion.

• 左上角的漂移尾气被垂直排列成一条直线的参宿一，参宿二和参宿三截断，这就是猎户座的腰带星。