--- name: Struve 2540 constellation: Vul created_by: editor.cs created_date: 2022-01-21 17:00:00 updated_by: skybber updated_date: 2022-02-11 15:48:40.455418 --- the triple stars. In the 100/150 mm instrument, the relatively tight pair (5.1") consists of an unequally bright white 7.3mag and a bluish 8.8mag component. The 12.4mag guide lies 147" away.