---
name: R a S Gru
constellation: Gru
created_by: editor.cs
created_date: 2023-11-05 15:14:41.183458
updated_by: editor.cs
updated_date: 2023-11-05 15:14:41.183461
---
Variable stars of the Mira Ceti type are observed in their maximum brightness. R Gruis changes its magnitude from 7.4 to 14.9 in a period of 332 days, while S Gruis changes from 6 to 15 over a period of 401 days.