--- name: R TrA constellation: TrA created_by: editor.cs created_date: 2023-11-05 17:56:40.495884 updated_by: editor.cs updated_date: 2023-11-05 17:56:40.495888 --- Cepheid variable changing its brightness by almost one magnitude: 6-6.8 mag with a period of 3.389 days. For cepheids that change their brightness so rapidly, determining their brightness once per night is insufficient.