--- name: 21 Sgr constellation: Sgr created_by: editor.cs created_date: 2023-11-05 16:44:53.626653 updated_by: editor.cs updated_date: 2023-11-05 16:44:53.626656 --- unequally bright and contrasting double star of orange (4.9mag) and bluish components (7.4mag), which are separated by only 1.8", so they cannot be easily distinguished with a small telescope.