---
name: ρ Cas
constellation: Cas
created_by: editor.cs
created_date: 2022-01-21 17:00:00
updated_by: skybber
updated_date: 2022-01-23 10:13:15.269131
---
An irregular variable star, like R Coronae Borealis, its brightness varies between 4.1mag and 6.2mag in a cycle that lasts a little less than a year. Suitable comparison stars are σ (4.9mag) and τ Cas (4.87mag). This exceptionally luminous supergiant is 3400 light-years away. It can be seen in the sky near the star β Cas.