czsky/en/star/hr15.md

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---
name: Sirrah
constellation: Peg
created_by: editor.cs
created_date: 2023-11-05 17:45:19.049007
updated_by: editor.cs
updated_date: 2023-11-05 17:45:19.049010
---
The blue-white star on the border of Andromeda and Pegasus. It is interesting in that in the past it belonged to two constellations and had dual designations: α Andromedae (Sirrah) and δ Pegasi (Alpherratz). Today, it is classified in the constellation of Andromeda, although with its brightness of 2.06 mag, it is also the brightest star in the Pegasus Square. It is located 97 light-years away.